Mounted axle disc brake

FIELD: transport.

SUBSTANCE: invention relates to railway transport, namely, to railway vehicle braking clamps. Disc brake comprises case, brake plates, brake shoes with plastic linings, leverage with two bell cranks and their hinge pins. Brake discs are secured at both sides of running wheel. Leverage is engaged with brake souse on one side and, on that other side, with controlled pneumatic brake cylinders and springs to pull brake shoes from brake disc. Disc brake is equipped with friction discs fitted on both sides of running wheel, at brake discs ends. Inner friction discs are composed of segments fitted on axles at the case while outer friction discs are composed of segment rings secured by pins at brake disc with plates to connection of segments by screws. Friction discs comprises extra springs fitted at axles to make clearance over friction surface.

EFFECT: higher efficiency of braking, decreased sizes, simplified design, expanded operating performances.

2 dwg

 

The invention relates to the field of railway transport, namely the braking equipment of railway vehicles, in particular for disc brakes.

Known wheel hub for railway vehicle with two wheels connected with the axle and brake discs, interacting with the surfaces of the wheels, and the elastic ring, providing the necessary oscillation frequency drives, or installed inside of the wheel rim massive ring rubber gasket (US patent # 7625030, CL B60B 17/00, publ. 2009).

The disadvantage of the invention are one friction surface on each side of the wheel and at higher speeds, rail transport will require an increase in the pressing force on the brake pads, which increases the temperature in the friction zone, reduces the reliability and efficiency of the disk brake.

Known disk brake system TMH containing installed in the vehicle a single device with the disk ticks on each wheel of the undercarriage, wedge-shaped nodes are rigidly connected to the brake beams and contain a pair of rollers rotatably on the respective edges of the pair of swivel levers located inside the unit disk with mites. (US patent # 7341128, CL B61H 13/00, publ. 2004)

The drawbacks are:

- a system of levers to drive mites complicates the design and reduces the reliability of work;

- lack of Autonomous drive rotation of the levers does not provide the versatility of installation and reduces the technical capabilities of the device.

Known disk brake wheels, taken as a prototype, containing cast-iron brake discs, brake pads with plastic linings, lever transmission with two two shoulders levers associated with one side of the brake pads and the other cone, controlled pneumatic brake cylinder, brake disc mounted on two lateral sides of the drive wheels. (Gutkin L.V., Dimant YU.N., Ivanov I.A. Train ER 200. - M.: Transport, 1981, UDC 629.423.2: 621.3.024, p.62, 63).

Disadvantages disc brakes are:

- the presence of tick-borne parallelogram mechanism increases the transverse dimensions of the brakes, which complicates its use in driving small trucks and narrows the technical capabilities of the disk brake;

- a large number of structural elements (springs, parallelogram mechanism) complicates the design of the disk brake;

- design of brake pads does not provide increased braking force to, for example, when driving at high speed, that is elicium braking distance and reduces the efficiency of the disk brake.

The technical result of the invention is to improve the efficiency of the braking process, smaller brakes, simplifying the design and the technical capacity of the brake.

This technical result is achieved in that the disc brake wheels, comprising a housing, brake discs fixed on both sides of the drive wheels, the brake pads with plastic linings, lever transmission with two two shoulders levers associated with one side of the brake pads and the other with a controlled pneumatic brake cylinder and the spring for pulling the brake pads away from the brake disk, the hinge axis for fastening two shoulders arms; disc brake is equipped with at least two friction disks arranged on both sides of the drive wheels and set the ends of the brake discs, the inner friction discs made in the form of segments secured through the axis on the body, and the outer friction discs made in the form of rings of segments secured through the axes of the brake disk pads for connection of the segments screws, friction discs contain additional springs mounted on the axles for the formation of a gap on the friction surfaces.

Figure 1 shows a front view of the disk brake of the passage is on the wheel (along its axis) and figure 2 - section a-a in figure 1.

Disc brake wheels includes a housing 1, brake discs 2, mounted on both sides of the disk 3 wheels 4, the brake pads 5 with a plastic lining 6, the lever transmission with two two shoulders arms 7 connected with one side of the brake pads 6, and the other with a controlled pneumatic brake cylinder 8 and a spring 9 for pulling the brake pads 5 of the brake disk 2, the hinge axis 10 for fastening two shoulders of the levers 7; disc brake is equipped with at least two friction discs 11 and 12 located on both sides of the disk 3 wheels 4 and installed with the ends of the brake discs 2, forming with plastic lining 6 of the brake pads 5 at least three friction surfaces 13, 14 and 15, the inner friction disks 11 are made in the form of segments 16, embodied through the axes 17 on the housing 1 and the outer friction discs 12 made in the form of ring segments 18 fixed through the axis 19 to the brake disk 2 with the pads 20 for the connection of the segments 18 by screws 21, the friction discs 11 and 12 provide additional spring 22 mounted on the axes 17 and 19 for the formation of a gap on the friction surfaces 13, 14 and 15.

Disc brake wheelset works as follows. When it receives a signal about the need for braking power cavity is nematicheskogo brake cylinder 8 is connected with a supply of air, springs 9 and 22 are compressed and two shoulders levers 7 are rotated around the hinge axis 10, with the brake pads 5 with plastic linings 6 are approaching the friction discs 11 and 12 on the value of L, which interact on the friction surfaces 13, 14 and 15 with brake discs 2, create a braking torque of friction, which through the axis 17 and 19 is transmitted to the brake disk 2, and is in the process of braking. During movement of the vehicle air pressure in the pneumatic brake cylinder 8 is reset and the springs 9 and 22 is the removal of the disks 11 and 12 and the education gap on the friction surfaces 13, 14 and 15. The presence of three friction surfaces 13, 14 and 15 of the brake disk 2 increases the friction torque, this may reduce the size of the brakes, simplifying its design, respectively, the mass loss mechanisms clamping device of the disk brake and enhancing the technical capacity of the brakes through the use of various mechanisms, as well as improving the efficiency of the braking process due to selection of the plastic material of the lining 6 and the friction discs 11 and 12.

Disc brake wheels, comprising a housing, brake discs fixed on both sides of the drive wheels, the brake pads with plastic linings, lever transmission with two two shoulders arms, sviazannuju one side of the brake pads and the other with a controlled pneumatic brake cylinder and the spring for pulling the brake pads away from the brake disk, the hinge axis for fastening two shoulders arms, characterized in that the disc brake is equipped with at least two friction disks arranged on both sides of the drive wheels and set the ends of the brake discs, the inner friction discs made in the form of segments secured through the axis on the body, and the outer friction discs made in the form of rings of segments secured through the axes of the brake disk pads for connection of the segments screws, friction discs contain additional springs mounted on the axles for the education gap the friction surfaces.



 

Same patents:

FIELD: transport.

SUBSTANCE: disc brake consists of shoe body, shoe friction linings, brake disc, mechanism with two bell cranks and springs, brake air cylinder and pins of said bell cranks. Brake disc is fitted at mounted axle of transport facility. Disc brake comprises friction discs arranged at both sides of friction disc that make, along with shoe friction linings, at least three surfaces of friction. Inner friction discs are composed of segments secured at body axle. Outer friction discs are composed of segment rings secured at brake disc axles with straps coupling said segments by screws. Friction discs comprises extra springs fitted at axles to make clearance over friction surface.

EFFECT: higher efficiency of braking, decreased sizes, simplified design, expanded operating performances.

2 dwg

FIELD: transport.

SUBSTANCE: disc brake comprises disc and support. When actuated by brake lever, said support thrusts brake-shoe lining arranged at holder against brake disc. Brake lever and brake-shoe lining are articulated by hinge. Brake lever and brake-shoe lining are electrically isolated.

EFFECT: ruled out feed of inverse current from rail to car body.

16 cl, 7 dwg

Clamp brake // 2492373

FIELD: transport.

SUBSTANCE: clamp brake is mounted at vehicle comprising body and wheel with brake surface to braking force to be applied to said wheel. Clamp brake comprises brake shoe, brake shoe holder, main clamping body, two support pins and drive. Support pins hold said holder at main clamp body to allow its displacement toward brake surface and therefrom. Drive allows pressing brake shoe to wheel brake surface by aforesaid holder. Said drive comprises diaphragm, drive pressure chamber, piston and connected gear. The latter comprises screws and screw bores made in said piston to receive screws to be screwed in through holder to attach the piston thereto.

EFFECT: efficient conversion of fluid pressure into brake shoe pressing force, stable braking force.

10 cl, 5 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building, particularly, to combine brake cylinders. Combined brake cylinder comprises cylinder of working braking mechanism, an active working brake, driven by working fluid displaced by piston and braking mechanism cylinder with spring energy accumulator, a passive parking brake. Piston of aforesaid braking mechanism cylinder with spring energy accumulator and rod of cylinder of working braking mechanism piston are aligned. In case piston stroke in aforesaid braking mechanism cylinder with spring energy accumulator increases power transfer ratio increases as well. Rail mounted vehicle disc type braking mechanism support unit incorporates said combined braking cylinder.

EFFECT: compact design, maximised force of braking.

25 cl, 15 dwg

FIELD: machine building.

SUBSTANCE: connecting device includes a housing, into which a rotating disc is placed. The housing has a plate-like component with an annular surface transmitting the force, which contacts the rotating disc. A medium cooling channel having an annular structure is formed with a side of plate-like component, which is opposite to the surface transmitting the force. The cooling medium channel has an inlet hole, through which medium enters the above channel and an outlet hole, through which cooling medium leaves the above channel. External radial section of the above channel is separated from internal radial section of the above channel with a section with a wall. The first and the second ribs are continued from the section with a wall through external radial part of the above channel, and the third and the fourth ribs are continued from the section with the wall through internal radial section of the above channel. Each of the ribs is located at some distance from the side of plate-like component located opposite the surface transmitting the force. Connecting device also includes the first and the second varieties of projections, which contact the side of plate-like component, which is opposite to the surface transmitting the force.

EFFECT: acceleration of heat transfer from components of the connecting device.

4 cl, 8 dwg

FIELD: machine building.

SUBSTANCE: annular disc brake includes a rotating disc and at least one disc shoe installed on each side of the rotating disc. Brake shoe or shoes on one side are connected to an axially guided load-carrying element of the brake shoe. The brake has a force transfer mechanism creating enhancement of increase in force between the axially driven element and load-carrying element. The method for increasing gripping force of brake shoe in annular disc brake consists in the fact that the first force is generated synchronously with the brake drive; at that, the first force has the direction that is parallel to rotation axis of the rotating disc. Also, rotating torque is generated using the first force; at that, rotating torque has the rotation centre that coincides with rotation axis of the rotating disc. Besides, the second force is generated using rotating torque; at that, the second force has the direction that is essentially identical to the direction of the first force and is higher than the first force. The second force is used for gripping of brake shoes on opposite sides of the rotating disc.

EFFECT: increasing brake compactness and providing uniform distribution of braking force in a circumferential direction of the rotating disc.

20 cl, 12 dwg

FIELD: transport.

SUBSTANCE: invention relates to rolling stock brake systems. Disc brake comprises friction unit. Friction unit is composed of radial double-row thrust bearing with medium ring making the brake disc rigidly fitted on mounted axle while two thrust rings make linings. Said linings are pressed to medium ring by levers coupled with brake cylinder. Outer surface of medium ring and inner surfaces of thrust rings have taper grooves to accommodate the balls.

EFFECT: reduced thermal load and wear of disc brake friction pair.

4 dwg

FIELD: transport.

SUBSTANCE: proposed device comprises body, brake support, brake support levers, system of bearings and axial bearing. Levers are arranged on body outer surfaces directed in opposite directions to support eccentric shaft. Every lever may be driven by eccentric shaft crank. System of bearings is arranged between body and brake support lever. Eccentric shaft crank arranged at shaft end to extend from said body to rotate therein. Revolving eccentric shaft makes crack moving eccentrically relative to body to drive brake support lever. Axial bearing transfers axial forces from brake support lever to body. Axial bearing is located in zone of crank, between brake support lever and body, or part secured thereon. Axial force flow is directed from brake support lever directly to axial bearing and, therefrom, to body, or part secured thereon.

EFFECT: decreased friction.

6 cl, 3 dwg

Disc brake // 2458267

FIELD: transport.

SUBSTANCE: disc brake comprises brake disc, brake shoes arranged on both sides of brake disc and extra brake pair. The latter consists of two electromagnets arranged on both sides of brake disc. Said electromagnets are connected by magnetic conductor. Windings of electromagnets are connected to control unit.

EFFECT: improved performances and higher reliability.

1 dwg

FIELD: machine building.

SUBSTANCE: disc brake includes support of braking mechanism with brake disc. Support has the possibility of axial offset relative to brake disc and is fixed on shield of braking mechanism by means of two fasteners. Each fastener has one guide rigidly connected to shield of braking mechanism. For performing axial offset of braking mechanism support one fastener is located in sliding bearing and made in the form of floating bearing, and the other one is located in sliding bearing in the form of fixed bearing. Guide of fixed bearing along external periphery has the section which has the possibility of radial elastic deformation and against which the corresponding sliding bearing is partially borne with pretension.

EFFECT: improving technical characteristics of disc brake owing to resistance to wear and vibration of fixed bearing of disc brake.

26 cl, 7 dwg

FIELD: transport.

SUBSTANCE: disc brake consists of shoe body, shoe friction linings, brake disc, mechanism with two bell cranks and springs, brake air cylinder and pins of said bell cranks. Brake disc is fitted at mounted axle of transport facility. Disc brake comprises friction discs arranged at both sides of friction disc that make, along with shoe friction linings, at least three surfaces of friction. Inner friction discs are composed of segments secured at body axle. Outer friction discs are composed of segment rings secured at brake disc axles with straps coupling said segments by screws. Friction discs comprises extra springs fitted at axles to make clearance over friction surface.

EFFECT: higher efficiency of braking, decreased sizes, simplified design, expanded operating performances.

2 dwg

FIELD: transport.

SUBSTANCE: disc brake comprises disc and support. When actuated by brake lever, said support thrusts brake-shoe lining arranged at holder against brake disc. Brake lever and brake-shoe lining are articulated by hinge. Brake lever and brake-shoe lining are electrically isolated.

EFFECT: ruled out feed of inverse current from rail to car body.

16 cl, 7 dwg

FIELD: transport.

SUBSTANCE: proposed device comprises bearing plate, connector, some brake-shoe linings arranged above said support plate. Connector is furnished with shoe holder arranged above said plate. Every said lining incorporates an insert, said lining and said insert being made from different powder mixes. Insert features higher thermal expansion factor and compressibility than those of the lining. Insert area makes 19-26% of total area of one lining.

EFFECT: uniform pressure distribution over contact surface at every braking.

16 cl, 55 dwg

Clamp brake // 2492373

FIELD: transport.

SUBSTANCE: clamp brake is mounted at vehicle comprising body and wheel with brake surface to braking force to be applied to said wheel. Clamp brake comprises brake shoe, brake shoe holder, main clamping body, two support pins and drive. Support pins hold said holder at main clamp body to allow its displacement toward brake surface and therefrom. Drive allows pressing brake shoe to wheel brake surface by aforesaid holder. Said drive comprises diaphragm, drive pressure chamber, piston and connected gear. The latter comprises screws and screw bores made in said piston to receive screws to be screwed in through holder to attach the piston thereto.

EFFECT: efficient conversion of fluid pressure into brake shoe pressing force, stable braking force.

10 cl, 5 dwg

FIELD: transport.

SUBSTANCE: invention relates to rolling stock brake systems. Disc brake comprises friction unit. Friction unit is composed of radial double-row thrust bearing with medium ring making the brake disc rigidly fitted on mounted axle while two thrust rings make linings. Said linings are pressed to medium ring by levers coupled with brake cylinder. Outer surface of medium ring and inner surfaces of thrust rings have taper grooves to accommodate the balls.

EFFECT: reduced thermal load and wear of disc brake friction pair.

4 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises two levers arranged on opposed outer surfaces of casing and system of seals. Brake caliper levers are driven eccentrically by crank. Crank is fitted on eccentric shaft end side. Seal between casing and lever represents tight seal and comprises partially elastic bellow secured to case on one side, and, on opposite side, to brake caliper lever.

EFFECT: improved operating performances.

10 cl, 3 dwg

FIELD: transport.

SUBSTANCE: proposed device comprises body, brake support, brake support levers, system of bearings and axial bearing. Levers are arranged on body outer surfaces directed in opposite directions to support eccentric shaft. Every lever may be driven by eccentric shaft crank. System of bearings is arranged between body and brake support lever. Eccentric shaft crank arranged at shaft end to extend from said body to rotate therein. Revolving eccentric shaft makes crack moving eccentrically relative to body to drive brake support lever. Axial bearing transfers axial forces from brake support lever to body. Axial bearing is located in zone of crank, between brake support lever and body, or part secured thereon. Axial force flow is directed from brake support lever directly to axial bearing and, therefrom, to body, or part secured thereon.

EFFECT: decreased friction.

6 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building and may be used in disc brakes. Proposed device comprises bearing structure running gear, braking unit, load pickup and control unit. Brake unit is arranged on bearing structure and allow transmitting braking force to friction surface of running gear rotating element. Load pickup is arranged on brake unit or on bearing structure and serves to measure friction force between brake unit and friction surface or resultant force. Control unit compares actual values of load from load pickup with preset values. Besides, control unit actuates brake unit to reduce its icing in case actual value deviates from preset value preferable for preset limit value. Proposed transport facility comprises bearing structure running gear, braking unit, load pickup and control unit. Proposed method consists in defining load in brake unit or is bearing structure of transport facility, particularly, railway vehicle, or between brake unit and bearing structure resulted from friction force transmitted from aforesaid friction surface to brake unit. Then, actual value is compared with preset one. Besides, control unit actuates brake unit to reduce its icing in case actual value deviates from preset value preferable for preset limit value.

EFFECT: better control over braking.

17 cl, 2 dwg

Vehicle clamp brake // 2429393

FIELD: transport.

SUBSTANCE: brake clamp comprises first braking lever arranged opposite vehicle wheel first friction surface and second braking lever arranged opposite second friction surface. Moving brake shoe is mounted on first braking lever to apply brake force to first friction surface. Brake clamp houses pistons to move moving brake shoe in response to membrane extension and guide frame to guide pistons in direction perpendicular to first friction surface. Moving brake shoe applies uniform brake force to vehicle wheel together with brake shoe secured to second braking lever.

EFFECT: uniform pressure on revolving wheel surface.

13 cl, 12 dwg

FIELD: transport.

SUBSTANCE: braking clamp comprises two braking levers arranged opposite friction surfaces applied to appropriate lateral surfaces of vehicle wheels. Braking lever applies braking force to vehicle wheel by pressing braking clamp against friction surface. Pressure chamber confined by membrane is arranged in braking lever. Pistons displace braking clamp subject to membrane expansion in feeding compressed air into pressure chamber. Guide device guides pistons in direction perpendicular to friction surface.

EFFECT: uniform pressure on revolving wheel surface.

12 cl, 11 dwg

Air-operated brake // 2502621

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly, to rolling stock braking equipment. Proposed brake comprises spindle and clevis. Said spindle can displace axially. Said spindle rests on said clevis to prevent spindle turn. First ring gear and second ring gear of said clevis have opposed fixed teeth are coupled with said clevis. Spindle ring gear with teeth of both sides is tightly engaged with said spindle between both said ring gears of the clevis.

EFFECT: simplified design and servicing.

12 cl, 4 dwg

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