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
  • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
  • B61H13/00—Actuating rail-vehicle brakes
  • B61H13/34—Details
  • B61H13/36—Beams; Suspension thereof
• • 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
  • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
  • F16D2055/0004—Parts or details of disc brakes
  • F16D2055/0008—Brake supports

Definitions

• TITLE Railway braking system for railway vehicle and railway vehicle provided with such a system
• the invention relates to the field of braking of railway vehicles. It relates more particularly to a braking system for a railway vehicle with brakes with at least one lining, configured to act on a braking member of said railway vehicle via said at least one lining. It also concerns railway vehicles comprising such systems.
• railway vehicles known as brakes with at least one lining are generally equipped with braking systems with service and/or parking brake cylinders, comprising for example a piston movable under the effect of a pressurized fluid , the movement of this piston actuating a braking linkage and causing a braking action such as the tightening of a brake disc by the lining of this linkage.
• the cylinder and the linkage form what can be called a braking unit.
• Such a braking system is mounted on the railway vehicle, to be in contact with the brake discs or with the wheels.
• This braking system can be mechanically secured on a support formed directly or indirectly by a bogie, or by an axle fixed to the bogie, or by another device of the drive motor or gearbox type also mounted on the bogie.
• the braking action generates forces which can be transmitted, via levers and the connection device, to the support to which the braking system is attached.
• the braking system may include a fixing interface secured to the braking unit and to which the force transmission links are secured. This fixing interface may have fixing holes for its attachment to the vehicle support.
• the mounting interface is mounted on the unit, with the force transmission links which are secured to the packing holders, before mounting on the support.
• the system formed by the unit and the fixing interface is assembled to the support, with the trim holders arranged on either side of the disc or the wheel of the vehicle, the unit which extends longitudinally according to a radius of the disc or the wheel, and the fixing interface which is located opposite the support, in a direction for example orthogonal to that of extension of the unit.
• mounting screws are introduced, for example vertically, from the side of the support which is opposite the unit, through the support to the fixing holes. It is therefore necessary to have both access to the side of the support which is opposite the unit and space to pass a tool through and maneuver it.
• the invention relates to a railway braking system of the type described above, having improved performance, while being simple, convenient and economical.
• the subject of the invention is therefore, in a first aspect, a railway braking system for a railway vehicle with brakes with at least one lining, configured to act on at least one rotary braking member of the railway vehicle via the at least one lining and comprising a braking unit provided with a braking linkage having the at least one lining and a brake cylinder configured to actuate the braking linkage, the braking unit extending in one direction generally longitudinal and generally orthogonal to an axis of rotation of the at least one rotary braking member, and a fixing interface secured to the braking unit and configured to be fixed on a support of the railway vehicle in an assembly direction generally perpendicular to the general longitudinal direction and to the axis of rotation, characterized in that the fixing interface is provided with a mounting block configured to be mounted by interlocking with the vehicle support in the direction of assembly and having at least one support face and fastening members
• the system according to the invention uses, for its attachment to the vehicle support, cooperation via the support face of the mounting block which can preferably be flat.
• the assembly in particular the nesting of the mounting block, is done according to the general direction of assembly which is generally perpendicular to the general longitudinal direction of the braking unit and to the axis of rotation of the rotating member braking.
• the mechanical securing of the mounting block is done in a direction distinct from the assembly direction.
• the general longitudinal direction of the braking unit is substantially horizontal while the general assembly direction is substantially vertical.
• securing the mounting block is possible outside the allocated space in the general assembly direction.
• the securing of the mounting block can be done rather in a direction substantially parallel to the axis of rotation of the rotary braking member of the vehicle, or rather substantially parallel to the general direction of extension of the unit braking.
• the system according to the invention therefore facilitates the securing of the braking system with the vehicle, especially when the space is quite small between the braking unit and the support or, in other words, above and below the block disassembly. Preferred, simple, convenient and economical characteristics of the system according to the invention are presented below.
• the fixing members extend in a fixing direction substantially perpendicular to the assembly direction, pass at least partially through the mounting block and are configured to position it relative to the vehicle support and fix it to the latter.
• the mounting block is provided with orifices passing through and opening on the one hand onto a first support face and on the other hand onto a second support face opposite the first support face, whereby the means of fixing are introduced from one or the other of the first and second support faces for the assembly of the mounting block with the vehicle support.
• the system comprises a suspension mechanism interposed between the braking unit and the mounting block, which has a mounting face distinct from the at least one support face and configured for the mechanical securing of the suspension mechanism according to the assembly direction.
• the braking unit comprises a connection device mechanically secured on the one hand to the suspension mechanism and on the other hand to the braking linkage, which comprises levers mounted movable in rotation around the connection device, and a service brake and/or parking space housed at least partially in the cylinder and configured to act on the braking member by actuating the levers of the braking linkage.
• the mounting block is provided with at least one guiding and/or keying member.
• the at least one guiding and/or keying member is formed by a notch or a projection formed in the at least one support face and configured to cooperate with respectively a complementary projection or a complementary notch.
• the fixing interface is provided with an intermediate part configured to be mechanically secured on the one hand, with the vehicle support according to the direction assembly and on the other hand, with the mounting block by the at least one support face in the direction distinct from the assembly direction.
• the system comprises at least one seal holder on which is mounted at least one said seal and at least one force transmission link mechanically secured on the one hand to the intermediate part of the fixing interface and on the other hand , to the garnish holder.
• the intermediate part is provided with a body having a central recess in which the mounting block is fitted and with at least one complementary support face, for example projecting into the central recess, intended to come opposite the 'at least one support face of the mounting block.
• the invention also relates, according to a second aspect, to a method of assembling and/or disassembling a railway braking system as described above on a railway vehicle, comprising a step of fitting and/or to disengage the mounting block from the fixing interface with the vehicle support according to the assembly direction, and to mechanically secure the mounting block in a direction distinct from the assembly direction by the at least one face support and by the fixing members of the first support face.
• the method comprises a step of mounting according to the assembly direction the intermediate part with the vehicle support, then of fitting according to the direction assembly the mounting block with the intermediate part then mechanically securing the mounting block in the direction distinct from the assembly direction.
• the method further comprises a step of unsecuring according to the direction distinct from the assembly direction the mounting block of the intermediate part, then of disengaging according to the assembly direction the mounting block of the intermediate part, then of dismantling the intermediate part of the vehicle support.
• the invention also relates, according to a third aspect, to a railway vehicle with brakes with at least one lining, comprising at least one railway braking system as described above, configured to act on at least one rotary braking member. of said railway vehicle via said at least one lining.
• the at least one rotary braking member is formed by a disc or a wheel.
• Figure 2 only partially and isolatedly represents the railway braking system, which is also partially disassembled.
• Figure 3 represents a first assembly operation of the railway braking system on the vehicle support.
• Figure 4 represents a second assembly operation of the railway braking system on the vehicle support.
• Figure 5 is a detailed view of the railway braking system.
• Figure 6 is a sectional view marked AA in Figure 5.
• Figure 7 is a sectional view marked BB in Figure 6.
• Figure 8 is a view similar to that of Figure 7, taken along a section plane offset and showing an alternative embodiment of the railway braking system.
• Figure 9 is a view similar to that of Figure 7, showing another alternative embodiment of the railway braking system.
• FIGS 1 to 4 partially illustrate a railway vehicle 1 provided with a railway braking system 2 configured to act on a rotary braking member, here formed by a brake disc 3, of the railway vehicle 1 via linings 4
• the railway braking system 2 is mechanically secured to a support 5, which can be formed directly or indirectly by a bogie, or by an axle support fixed to the bogie, or by another device of the drive motor type. or gearbox also mounted on the bogie. Due to the movements inherent to the railway vehicle 1 both in the rolling phase and in the braking or unbraking phase, the railway braking system 2 is here mounted "suspended" relative to the support 5.
• the railway braking system 2 is here mechanically secured to the railway vehicle 1 only by means of the support 5, through a fixing interface 6 itself mechanically secured on the one hand, to a connection device 7 and to transmission links of forces 8 of the railway braking system 2.
• the braking action generates braking forces which are therefore transmitted to the railway vehicle 1 via the support 5 and via the fixing interface 6, the connection device 7 and force transmission links 8.
• the railway braking system 2 comprises a unit of brake which is provided with a brake linkage 10 and a service and/or parking brake 11 configured to act on the brake disc 3 via the brake linkage 10.
• the service brake and/or or parking lot 11 conventionally comprises a cylinder 9, here of the pneumatic type.
• the brake linkage 10 is provided with movable levers 12 mechanically secured at one end to the cylinder 9 of the service and/or parking brake 11, and with lining holders 13 which are mechanically secured to a respective opposite end of the levers 12 and which carry the trims 4.
• the force transmission links 8 are mechanically secured to the trim holders 13.
• the mobile levers 12 are configured to be actuated by the service and/or parking brake 11.
• the connection device 7, which is part of the braking unit, here comprises a lower part 14, an upper part 15 connected to the upper part by an intermediate part (not shown), and pivot axes 16 around which the levers 12 are movably mounted.
• the lower part 14, the upper part 15 and the intermediate part are formed in one piece.
• the cylinder 9 of the service and/or parking brake 11 is therefore here secured to the connection device 7 via the levers 12 which it pivots.
• the connection device 7 further comprises a fastening portion 17 by which it is fixed to the fixing interface 6, together with the cylinder 9 and the levers 12.
• the railway braking system 2 further comprises a suspension mechanism 18 interposed between the fixing interface 6 and the connection device 7 to which the brake cylinder 9 is connected via the levers 12.
• the braking unit extends in a general longitudinal direction L and generally orthogonal to an axis of rotation R of the brake disc 3.
• the braking system 2 is here assembled, via the fixing interface 6, to the support 5 of the vehicle 1 in an assembly direction A generally perpendicular to the general longitudinal direction L and to the axis of rotation R.
• the general longitudinal direction L is substantially horizontal while the assembly direction A is substantially vertical.
• the fixing interface 6 is here provided with a mounting block 20 and an intermediate part 21, also called an anchoring part.
• the fixing interface 6 is configured so that the mounting block 20 is directly mechanically secured on the one hand to the mechanism suspension 18 and on the other hand, to the intermediate part 21 which is in turn configured to be also directly mechanically secured to the support 5 of the vehicle 1.
• the mounting block 20 and the intermediate part 21 are configured to be assembled by interlocking in the assembly direction A and mechanically secured to each other in a direction distinct from the assembly direction A.
• the intermediate part 21 is provided with a first body 22 from which extensions 23 project the force transmission links 8 are assembled.
• the first body 22 has a central recess 24 in which the mounting block 20 is fitted and two walls forming so-called complementary support faces 25 each provided projecting into the central recess 24 and facing each other.
• the first body 22 further has a plurality of first fixing orifices opening into the central recess 24, including first positioning and fixing orifices 27 and first fixing orifices 26 provided here through the complementary support faces 25 only.
• the first fixing orifices 26, 27 are here all oriented in the direction distinct from the assembly direction A.
• the first body 22 also has other fixing orifices 29 provided passing through the first body 22, oriented in the direction of assembly A, and designed to receive fixing screws 28 for the mechanical securing of the intermediate part 21 with the support 5 of the vehicle 1.
• the mounting block 20 is provided with a second body 30 here defining two support faces 31, also called first support face and second support face, into which a plurality of second fixing orifices open, including a second positioning and fixing orifice 33 and second fixing orifices 31.
• the second body 30 of the block mounting 20 is fitted into the central recess 24 of the first body 22 of the intermediate piece 21 so that the complementary support faces 25 are each facing each other and in the immediate vicinity of the support faces 31, and the railway braking system 2 comprises members for fixing the support faces 31 with complementary support faces 25 including, in the example illustrated, a positioning and fixing member 35 passing through at least one of the first positioning and fixing orifices 27 and the second centering and fixing orifice fixing 33, and fixing members 34 passing through at least some of the first fixing orifices 26 and the second fixing orifices 32.
• the fixing members thus extend in the direction distinct from the assembly direction A.
• the support faces 31 and complementary support faces 25 are here generally planar and arranged so as to form a planar support between the mounting block 20 and the intermediate part 21.
• Figures 3 and 4 show the assembly process of the railway braking system 2 on the support 5 of the vehicle 1 via the fixing interface 6.
• the intermediate part 21 together with the force transmission links 8 are mechanically secured to the support 5 via the screws fixing 28 introduced according to the assembly direction. Access here is particularly easy without the presence of the rest of the railway braking system 2.
• the intermediate part 21 is mounted separately on the support 5.
• the rest of the railway braking system 2 including in particular the cylinder 9, the levers 12, the connection device 7, the suspension mechanism 18 and the mounting block 20 already assembled, can then be approached from the intermediate part 21 according to the assembly direction.
• the mounting block 20 is fitted into the intermediate piece 21, with the supporting faces and complementary supporting faces facing each other and in immediate proximity, then the positioning and fixing member 35 is introduced through one of the first positioning and fixing orifices 27 and the second positioning and fixing orifice 33, then the fixing members 34 are introduced through first fixing orifices 26 and second orifices and fixing 32.
• the fixing members extend in the direction distinct from the assembly direction, they can be operated with a tool 40, for example of the socket wrench type or the like, having a handle which runs along the direction of assembly. assembly, in a particularly small footprint.
• the method of assembling and/or disassembling the railway braking system 2 comprises a step of fitting and/or disengaging the mounting block 20 of the fixing interface 6 with the support 5 in the direction d assembly, and to mechanically secure the mounting block 20 in a direction distinct from the assembly direction.
• the fixing interface 6 is provided with an intermediate part 21 like that described above
• the method first comprises a step of mounting in the assembly direction the intermediate part 21 with the support 5, then of fit the mounting block 20 with the intermediate piece 21 according to the assembly direction and then mechanically secure the mounting block 20 in the direction distinct from the assembly direction.
• the method further comprises a step of unsecuring in the direction distinct from the assembly direction the mounting block 20 from the intermediate part 21, then of disengaging in the assembly direction the mounting block 20 from the intermediate piece 21, then dismantle the intermediate piece 21 from the support 5.
• Figure 5 is a detail of Figure 4, showing the assembly of the suspension mechanism 18 with the attachment portion 17 of the upper part 14 of the suspension device connection 7, the mounting block 20 and the intermediate piece 21.
• Figures 6 and 7 are sections marked AA and BB respectively in Figures 5 and 6.
• the second body 30 of the mounting block is fitted into the central recess 24 of the first body 22 of the intermediate part so that the complementary support faces 25 are each facing each other and in the immediate vicinity of the support faces 31.
• the fixing members 35, 34 of the support faces 31 with the complementary support faces 25 pass through one of the first positioning and fixing orifices 27 and the second positioning and fixing orifice 33, and also at least some of the first fixing holes 26 and the second fixing holes 32.
• the fixing members thus extend in the direction distinct from the assembly direction.
• the support faces 31 and complementary support faces 25 form a plane support between the mounting block and the intermediate part.
• the fixing members 34, 35 extend in the fixing direction substantially perpendicular to the assembly direction, pass at least partially through the mounting block and are configured to position it relative to the support 5 of the vehicle 1 and attach it to the latter via the intermediate piece.
• the securing of the mounting block 20 can be done in a direction substantially parallel to the axis of rotation of the disc.
• the fixing members can be introduced from one or the other of the support faces 31 for the assembly of the mounting block.
• Figure 7 shows in more detail the securing of the suspension mechanism 18 with the mounting block 20 and the attachment portion 17 of the upper part 14 of the connection device 7.
• the railway braking system 2 comprises complementary screws of fastener 45 introduced into holes 48 provided in a mounting face 47 of the mounting block 20, distinct from the support faces 31.
• the suspension mechanism 18 is provided with a first and a second damping pads 49, 50 mounted on either side of the attachment portion 17. Complementary holes are formed so that the complementary fixing screws 45 pass through the damping pad 50, the attachment portion 17 and the damping pad 49 before being introduced into the holes 48 which are tapped.
• FIG. 8 shows an alternative embodiment of the system, in which the same references as above are used for similar elements, but added with the number 100.
• the mounting block 120 is provided with at least one guiding and/or coding member formed here by a notch 150 made in the second body 130 and in particular in the support face, while a complementary projection 155 is formed on the complementary support face 125 of the intermediate piece 121.
• the at least one guiding and/or keying member is formed by a notch or a projection formed in the at least one support face and configured to cooperate with respectively a complementary projection or a complementary notch of the complementary support face.
• FIG. 9 shows a variant embodiment of the system, in which the same references as above are used for similar elements, but added with the number 200.
• the suspension mechanism 218 differs from that described above in that it is provided with several cylinders 260 mounted suspended in the second body 230 of the mounting block 220, and the attachment portion 217 of the connection device 207 is directly secured to the cylinders 260 through the mounting face 247.
• the assembly in particular the nesting of the mounting block 20, is done according to the general direction of assembly which is generally perpendicular to the general longitudinal direction and to the axis of rotation of the member rotary braking.
• the mechanical securing of the mounting block is done in a direction distinct from the assembly direction.
• securing the mounting block is possible outside the allocated space in the general direction of assembly.
• the securing of the mounting block can be done rather in a direction substantially parallel to the axis of rotation of the rotary braking member of the vehicle, or rather substantially parallel to the general direction of extension of the unit braking.
• the system according to the invention therefore facilitates the securing of the braking system with the vehicle, especially when the space is quite small between the braking unit and the support or, in other words, above and below the block disassembly. Variants not illustrated are presented below.
• the intermediate piece can be formed in one piece with the support.
• the fixing members extend in a fixing direction substantially perpendicular to the assembly direction, and in particular substantially parallel to the general direction of extension of the brake braking unit rather than substantially parallel to the axis of rotation of the disk.
• the suspension mechanism has only one suspended cylinder, with or without a suspension link.
• the railway braking system does not have a suspension mechanism.
• the service and/or parking brake can be electromechanical, or hydraulic, or electric, or even manual rather than pneumatic. More generally, the invention is not limited to the examples described and represented.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=84820414

Family Applications (1)

Country Status (5)

Family Cites Families (10)

• 2022
  • 2022-11-07 FR FR2211544A patent/FR3141669A1/fr active Pending
• 2023
  • 2023-11-06 AU AU2023377536A patent/AU2023377536A1/en active Pending
  • 2023-11-06 WO PCT/FR2023/051732 patent/WO2024100344A1/fr not_active Ceased
  • 2023-11-06 CN CN202380068046.4A patent/CN120239792A/zh active Pending
  • 2023-11-06 EP EP23814235.0A patent/EP4616082A1/de active Pending

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