Composition of linings and and (F16D69/02)

Friction product // 2623787
FIELD: machine engineering.SUBSTANCE: polymer composite friction element of the friction product contains dispersed particles of ferrosilicon with particle sizes of 0.01 mm to 0.8 mm in the amount of 5 wt % to 15 wt %.EFFECT: formation of more abrasive silica particles and abrasive particles of silicon carbide in the surface layer of the friction element during the tribocontact, which improves the frictional characteristics of the product during operation.1 cl
Cracking brake pads of underground // 2614872
FIELD: transportation.SUBSTANCE: cracking brake pad includes a metal frame formed with two ridges and three polymer composite friction element. On the surface of the chassis pads between polymer composite friction elements fixed polymeric composite layer thickness of the friction material 8.0 mm before 35.0 mm.EFFECT: provision of increased tension tangential material layer, thereby providing an increase in the normal component of the force of interaction of surfaces in this area.

Friction engagement element, dry coupling and method of producing of friction engagement element // 2614403
FIELD: machine building.SUBSTANCE: invention relates to machine building, and more exactly to device transferring rotation or braking. The friction engagement element comprises a friction element (91b), mainly out of resin, and e metal element (93). The metal element (93) has sliding surface (93b) sliding on the friction element (91b). The friction element (91b) comprises aged layer (91d) in outermost external layer, and a reinforced layer (91e) with adjoining to the internal side of the aged layer (91d) through thickness of the friction element (91b). The sliding surface (93b) of the metal element (93) has a plurality of slots (95) and repositioned film (97) of the aged layer (91d) of the friction element (91b), repositioned and adhered to the internal part of slots (95) via sliding between the friction element (91b) and the metal element (93).EFFECT: stability of transferred torque.14 cl, 10 dwg
Railway vehicle brake shoe // 2608994
FIELD: transportation.SUBSTANCE: invention relates to railway vehicles. Braking shoe comprises recess on working surface, made in form of rotation surface part, not coaxial to shoe back surface, made in form of rotation surface part and containing projections in central and side parts. Distance between shoe back surface axis of rotation and shoe working surface axis of rotation is selected from relationship: L=0.91.1A, where L is distance between shoe back surface and shoe working surface axes of rotation, A is shoe back surface width.EFFECT: enabling improvement in shoe operating characteristics due to provision of shoe overall dimensions balance during operation.1 cl, 2 dwg

Railway vehicle brake shoe // 2608898
FIELD: transportation.SUBSTANCE: invention relates to railway vehicles. Braking shoe comprises two flat end surfaces, flat side surface, other side surface, part of which is made flat, and other part is made in form of torus surface section, as well as back and working surfaces. Containing recess working surface is made in form of rotation surface part, not coaxial to shoe back surface, made in form of rotation surface part and containing projections in central and side parts. Working surface axis of rotation is coaxial to axis of rotation of shoe side surface flat part mating arc interfacing with its part, made in form of torus surface part.EFFECT: enabling improvement in shoe operating characteristics due to provision of shoe overall dimensions balance during operation.1 cl, 1 dwg

Disc brake pad // 2605700
FIELD: machine building.SUBSTANCE: invention relates to machine building, namely to car disc brakes pads and other equipment equipped with ultimate wear audible warning devices. Friction pad wear warning device comprises U-shaped metal warning device fixed on frame by indicator attachment element. Device is placed in recess on metal frame. In metal frame recess U-shaped indicator fixation projection is made. Projection shall not extend above frame surface.EFFECT: enabling warning device simplified installation due to elimination of several installation operations.1 cl, 2 dwg

Denoising gasket // 2604226
FIELD: machine building.SUBSTANCE: invention relates to layered structural materials, particularly to a denoising gasket. Gasket is made in the form of a two-layer laminated plate. First layer is a relatively solid material having the first and the second surfaces. On the first surface there is multiple elevated and, as a rule, pointed sharpened elements, each of which has an apex. Second layer is a material from graphite foil, which is connected with the relatively rigid material so, that at least some pointed sharpened elements stab the material from graphite foil. In one embodiment the first layer does not have perforated holes and is uniformly smooth. In another version on the second surface there is also multiple sharpened elements, and the third layer containing graphite foil is connected with the second surface.EFFECT: invention provides creating a denoising gasket for installation between the piston and the substrate of the brake shoe.20 cl, 9 dwg

Brake shoe of railway vehicle // 2597307
FIELD: transport.SUBSTANCE: invention relates to railway transport, namely, to railway vehicles brake shoes. Brake shoe comprises a composite friction element, in the rear part of which there is a wire frame pressed made of two interconnected X-shaped frames. Sections of the frames forming the X-like shape are fixed to each other in crossing zone.EFFECT: provided is reduced possibility of destruction of the rear part of the shoe, thereby improving its operational characteristics.1 cl, 1 dwg

Friction lining // 2596697
FIELD: machine building.SUBSTANCE: present invention relates to machine building, particularly, to friction linings used in units operating in the presence of a lubricating material. Friction lining is made from a polymer friction composite, the working surface of which has grooves that incorporate two lateral surfaces and a base. Grooves that are arranged transversally have a trapezoidal shape, where each side surface of a groove and base form an angle of not less than 91 4'.EFFECT: stable friction properties, reduced wear of friction elements, better cleaning of friction contact zone from wear products due to optimum shape of grooves.1 cl, 2 dwg

Brake pad for drum brake // 2578960
FIELD: machine building.SUBSTANCE: brake pad of drum brake consists of metal and fixed thereon two brake pads. Working surface of brake pads and surface of metal pads, on which are fixed brake pads are made as parts of cylindrical surfaces. Working surface of shoe brake is coaxially surface of metal pads, on which are fixed brake pads.EFFECT: reduced cracking and non-uniformity of wear of brake pad.1 cl, 1 dwg

Elastic friction cover strip and brake pad equipped with such cover strip // 2577408
FIELD: machine building.SUBSTANCE: group of inventions relates to the machine building, in particular to the friction cover strips of the brake pads. The friction cover strip is intended for installation on the brake pad. The brake pad contains a base and a friction material. The base and friction material create a cavity upon their interfacing. The base contains a fixing base, engaging interface at distance from the lock base in direction parallel to the first plane, and contraction. On the lock base the friction material is secured. Contraction is located parallel to the first plane and creates resilient lamella between the lock base and engaging interface to ensure the lock base with possibility of movement and rotation in all directions. The brake pad consists of one or several parts, at that each part contains base and friction cover string.EFFECT: removal of premature and non-uniform wear out of the friction materials during braking, and exclusion of significant stresses in friction materials and in elements of their securing to base.15 cl, 9 dwg

Brake pad // 2575971
FIELD: machine building.SUBSTANCE: brake pad contains a metal framework and a polymer composite friction element made out of two layers. Each layer contains a polymer matrix, and filler/fillers. The layer of the polymer composite friction element located at the side of the metal framework has the weight ration of the matrix to the filler/fillers larger than in the working layer of the polymer composite friction element.EFFECT: reduced thermal conductivity of the brake pad in relation to the brake cylinder, increased item resistance to thermal fatigue during sudden heating and cooling of the item during operation due to the increased smoothness of thermal conductivity change as per the layers from the working layer of the friction element to the metal framework.

Friction material for making of brake, brake shoe and method of its fabrication // 2570515
FIELD: chemistry.SUBSTANCE: invention relates to machine building. Friction material comprises the binder, fibre, lubricant, abrasive, filler, titanates and copper. In compliance with the first and third versions, the lubricant contains metal sulphide, stibium trioxide, phthalocyanine, lead and zinc powders. In compliance with the first version, friction material comprises the rubber powder. In compliance with the second version, said lubricant makes the mix of stibium trisulphide and sulphide of metal other than stibium sulphide. In compliance with the third version, the filler comprises the rubber powder. The brake shoe comprises thrust disc and friction lining made of friction material. Claimed process comprises the mixing of binder, fibre, filler, lubricant and abrasive to get the homogeneous mix, compaction of the latter, joint compaction of the lining and thrust disc and their sintering.EFFECT: improved performances.23 cl, 1 dwg, 10 tbl
Rolling stock composite brake shoe with inserts // 2569207
FIELD: transport.SUBSTANCE: claimed single-ply brake shoe comprises a hard inserts, wire carcass and metal rest composed of two supports arranged on both sides over the length of said hard insert. Said hard inserts is jammed in the wire carcass. The support metal depth varies from 0.7 to 1.3 of the diameter of carcass wire. Support width makes 0.7-0.8 of wire carcass width Support length makes 0.4-0.6 of the gripper length.EFFECT: perfected performances due to prevented crack formation.

Brake pad // 2568818
FIELD: transport.SUBSTANCE: invention relates to railway transport, particularly, to railway transport braking equipment. Claimed brake pad consists of two interconnected carcass and friction element. Said carcass comprises fastening plate for lateral bosses and central boss with central bore to be attached from the carcass rear side. The carcass fastening plate is provided with copper-based film and is bonded by diffusion with aforesaid friction element. In compliance with the first version, the friction element working surface is provided with lapping ply made from 1-5 mm deep cermet material. Note here that lapping ply friction factor makes 20-80% of friction element hardness. In compliance with the second version, the carcass rear side is equipped with vibration-proof set. The latter consists of at least four segments located at contact points or carcass contact parts with the brake shoe contact area.EFFECT: longer life, higher resistance to higher temperatures and ambient effects.5 cl, 4 dwg

Railway vehicle braking clamp // 2564269
FIELD: transport.SUBSTANCE: invention relates to railway transport, particularly, to brake shoes of passenger and freight cars, electrical trains, diesel locomotives, etc. Braking clamp comprises friction element built around polymer composite locked at metal carcass composed by metal strip with reinforcing plate. Weight of metal strip, reinforcing plate and polymer composite is selected processing from the relationship: M1M2+M3=0,290,45, where M1 is metal strip weight, M2 is polymer composite weight and M3 is reinforcing plate weight.EFFECT: enhanced braking performances owing to balanced weight ratio and decreased heat load irregularity.1 dwg
Railway vehicle composite brake shoe producing abrasive nanoparticles in tribocontact // 2563526
FIELD: transport.SUBSTANCE: invention relates to railway transport, particularly, to brake shoes of passenger and freight cars, electrical trains, diesel locomotives, etc. Brake shoe producing abrasive nanoparticles in tribocontact comprises metal carcass, one- or two-layer composite friction element and insert or several metal inserts. Said insert or inserts are made of silicon iron with silicon content of 5.0-7.5 wt %.EFFECT: more stable friction properties, formation of abrasive nanoparticles in zone of tribocontact between shoe surface and wheel rolling surface to up the friction factor.

Traction rolling stock brake shoe // 2563519
FIELD: transport.SUBSTANCE: invention relates to railway transport, particularly, to rolling stock brake shoes operated in tribocontact with both wheel rolling surface and wheel flange surface. Brake shoe comprises steel carcass and friction element including main part and shaped part with groove. Said main and shaped pats are made of polymer composite friction material. Main part incorporates two iron inserts made of nonmagnetic iron. Said inserts are fitted radially to main part working surface outside the shoe central and end parts for them to contact with wheel rolling surface without contact with wheel flange.EFFECT: better operating performances of the shoe owing to higher friction characteristics, reduced shoe overheating owing to use of paramagnetic materials.4 dwg
Friction article // 2558520
FIELD: machine building.SUBSTANCE: friction article contains metal framework and polymer composite friction element made out of two layers. Layer of the polymer composite friction element located at side of the metals framework includes particles of cross-linked butadiene-nitrile elastomer containing magnesium hydroxosilicate.EFFECT: reduced possibility of delamination of the friction element near the framework or on its surface.

Composite alloy on fe-base for brake pad of railroad car // 2553138
FIELD: metallurgy.SUBSTANCE: composite alloy of Fe-base for brake pad of railroad car contains in wt %: copper 5-20, chrome 0.1-5.0, carbon 3-20, aluminium oxide 1-10, silicon oxide 0.5-5, iron - rest. Alloy contains iron matrix and friction filler, it is impregnated by organosilicon hydrophobisator. Base of the iron matrix has fine grain structure with grain size 15-70 mcm, containing sorbitic perlite with interlamellar distance 0.3-2.0 mcm, along borders inclusions of cementite, chromium carbide and free graphite are located.EFFECT: increased wear resistance of friction pair brake-pad-wheel, increased stability and friction coefficient, reduced wear of car wheel during braking.3 cl, 2 dwg, 1 tbl

Brake shoe of railway transport vehicle // 2550781
FIELD: transport.SUBSTANCE: brake shoe includes a composite friction element, a wire framework consisting of wide and narrow frames welded to each other, a solid insert with projections, which is inserted into the narrow frame of the wire framework, and a metal mesh or a perforated metal strip. In the wide frame of the wire framework the side parts of the frame, which are arranged on side surfaces of the rear part of the shoe, are concave to the central part of the surface of the rear part of the shoe. Concavity of side parts of the wide frame is 0.15.0 mm.EFFECT: increasing resistance of a shoe to impact thermal and mechanical loads at operation by providing more uniform distribution of thermal and mechanical loads on the rear part of the shoe due to shortening of the distance between a wider frame and a solid insert; reducing the number of shoes during production, which are rejected as per the "output of the wire of the frame onto the side surface of the shoe - baring of the wire framework" parameter.1 dwg
Brake shoe of railway vehicle // 2549597
FIELD: transport.SUBSTANCE: invention relates to railway transport, namely, to railway vehicle brake shoes. Brake shoe of railway vehicle contains composite friction element, metal frame and cast iron insert. The insert is made of silicious iron.EFFECT: improved shoe operational performance due to use of insert made of different material which is more appropriate for conditions of railway brake shoes operation.
Brake shoe of railway transport vehicle // 2549502
FIELD: transport.SUBSTANCE: brake shoe includes a composite friction element, a metal frame and a cast-iron insert. Weight of the working part of the insert comprises 20% to 55% of the insert weight.EFFECT: increasing resistance of a shoe to impact thermal loads at operation by providing optimum ratio of weights of operating and non-operating parts of the insert in the shoe.

Friction article // 2549045
FIELD: machine building.SUBSTANCE: friction article contains a metal framework with holes, moulded-on friction element, antinoise metal plate with bend elements, polymer dampening layer secured on the surface of the metal framework, opposite surface on which the friction element is moulded-on. Friction element is equipped with shoulders arranged inside the holes of the metal framework. The bend elements are made as sides and are secured in holes of the metal framework on the shoulders of the friction element. Damping layer surface facing the aforesaid antinoise metal plate is made with shoulders. On surface of the antinoise plate, opposite surface in contact with the dampening layer the additional dampening layer is secured, its surface is made with shoulders.EFFECT: increased noise-attenuating ability of the article due to location on the article of the additional noise-attenuating layer.1 dwg

Disk brake shoe // 2539268
FIELD: transport.SUBSTANCE: friction pad wear warning device includes U-shaped metal signalling device fixed on carcass by signalling device mounting element. The device is fitted in metal carcass recess.EFFECT: elimination of wear warning device motion relative to fixing element, elimination of projections over carcass surface as fixing portion of mounting element is entirely located inside recess in carcass.4 dwg

Disk brake shoe // 2539037
FIELD: transport.SUBSTANCE: disk brake shoe contains flat metal carcass and friction element fixed on it, herewith, butt surface of metal carcass is made with projection.EFFECT: reducing area of shoe butt end surface of contact with support elements, whereupon resistance to shoe motion relative to support elements is decreased, as well as possibility of shoe wedging-up is reduced when insignificant deviations of shoe position from brake disk - counterbody plane take place during operation.3 dwg

Friction item // 2536567
FIELD: machine building.SUBSTANCE: friction item includes a metal frame with holes. A friction element moulded onto it is equipped with projections arranged inside the holes. A polymer damping layer and an anti-noise metal plate with bent elements is fixed in the holes of the metal frame to the projections of the friction element. An additional polymer damping layer is fixed on the surface of the metal plate, which is opposite to its surface facing the metal frame. The surface of the additional damping layer, which is opposite to its surface facing the metal plate, has projections.EFFECT: increasing the noise absorbing ability of an item.2 dwg

Friction item // 2535808
FIELD: machine building.SUBSTANCE: friction item includes a metal frame and a polymer composite friction element moulded onto it. A polymer damping layer and an anti-noise metal plate with bent elements is fixed on the metal frame surface. The surface of the polymer damping layer, which faces the anti-noise metal plate, has projections. An additional polymer layer is fixed on the surface of the polymer damping layer, which contains the projections; with that, the above polymer damping layer is fixed on the metal frame surface.EFFECT: increasing the noise absorbing ability of an item; simplifying fixation of the anti-noise plate; simplifying the anti-noise plate structure as a whole.4 dwg

Friction item // 2535805
FIELD: machine building.SUBSTANCE: friction item includes a metal frame and a polymer composite friction element moulded onto it. A polymer damping layer and an anti-noise metal plate with bent elements is fixed on the metal frame surface. The surface of the polymer damping layer, which faces the anti-noise metal plate, has projections. Polymer damping layers are fixed on surfaces of the anti-noise metal plate. The latter is fixed with its bent elements to the end surface of the metal frame, and an additional polymer layer is fixed on the surface of the polymer damping layer, which contains the projections; with that, the above polymer damping layer is fixed on the metal frame surface.EFFECT: increasing the noise absorbing ability of an item; simplifying fixation of the anti-noise plate; simplifying the anti-noise plate structure as a whole.4 dwg

Car brake shoe with composite inserts // 2531677
FIELD: transport.SUBSTANCE: brake shoe comprises steel carcass and iron arched body furnished with grouped inserts. Insert abrasivity exceeds that of shoe body material. Said inserts are welded in place while the entire set is cast-in with iron to make integral working surface of the shoe. Said shoe has an extra metal carcass. Extra metal carcass incorporates inserts of the shoe body main section made of composite friction material, its friction factor exceeding that of the body, and lateral inserts composed of shaped elements in contact with locomotive tire flange surface interacting with rail side surface. Inserts are made of antifriction material with friction factor lower than that of the base and abrasiveness lower than that of the base and inserts fitted in pad body main section.EFFECT: more efficient braking, lower noise and wear, increased MTBR, reliable and stable operation of brake systems.5 cl, 4 dwg
Friction disk // 2526021
FIELD: machine building.SUBSTANCE: invention refers to the field of machine-building, namely, to the friction disks. The friction disk comprises a metal frame with eight recesses along external contour of the frame and eight holes with composite friction cover plates secured thereto. The friction surfaces of the friction cover plates are provided with twelve grooves each. The frame holes and recesses alternate along the disk circumference. Four grooves are located at one of the cover plates in the area of frame recesses, while the other grooves are located beyond the area of frame recesses and holes. Four grooves are located at the other cover plate within areas of frame holes, while the rest grooves are located beyond the area of frame recesses and holes.EFFECT: reduction of potential cracking and destruction of cover plates is achieved, which increases the disk strength and its stability to centrifugal loads.
Friction disk // 2526020
FIELD: machine building.SUBSTANCE: invention refers to the field of machine-building, namely, to the friction disks. The friction disk comprises a metal frame with eight recesses along external contour of the frame and eight holes with composite friction cover plates secured thereto. The friction surfaces of the friction cover plates are provided with twelve grooves each. The frame holes and recesses alternate along the disk circumference. Four grooves are located at one of the cover plates in the area of frame recesses, while the other grooves are located beyond the area of frame recesses and holes. Four grooves are located at the other cover plate within areas of frame holes, while the rest grooves are located beyond the area of frame recesses and holes.EFFECT: reduction of potential cracking and destruction of cover plates is achieved, which increases the disk strength and its stability to centrifugal loads.

Iron-based composite brake shoe for railway car // 2525609
FIELD: transport.SUBSTANCE: proposed brake shoe comprises steel carcass and arc-like body consisting of separate friction elements secured to steel carcass. Said elements are made of friction material. Guides and steel carcass have pressure plates to retain friction elements at steel carcass. Shoe friction element is shaped to prismatoid with trapezium-shaped bases. Said bases have recesses to accommodate steel carcass pressure plates. Ledge is made at one of lateral surfaces of friction element while recess is made at opposite side surface. Friction elements fitted in steel carcass are secured by squeezing of the carcass lateral pressure plates. Two extreme elements are additionally pressed by pressure plates of carcass guides. Friction elements are made of iron-base metal.EFFECT: higher safety and wear resistance, better manufacturability.6 cl, 3 dwg
Friction disk // 2525247
FIELD: machine building.SUBSTANCE: invention relates to machine building, in particular, to friction disks. A friction disk comprises a metal body with eight recesses along the outer body outline and eight holes with composite friction patch pieces being fixed on the disk. Twelve grooves are provided on the friction surfaces of the friction patch pieces. The holes and recesses are alternating along the disk circumference. On one of the patch pieces four grooves are placed in the holes' zones and the other grooves are beyond the zones of the recesses and holes of the body. On another patch piece four grooves are placed in the zones of the body recesses, four grooves are placed in the zones of the body holes and the other grooves are beyond the zones of the recesses and holes of the body.EFFECT: it is provided for reduced formation of cracks and destruction of patch pieces thus disk strength is improved and its resistance to centrifugal loads is increased.

Iron-based composite brake shoe for railway car // 2524763
FIELD: transport.SUBSTANCE: proposed brake shoe comprises steel carcass and arc-like body consisting of separate friction elements secured to steel carcass. Said elements are made of friction material. Steel carcass has clip and guides welded to outer surface. Guides and steel carcass have pressure plates to retain friction elements at steel carcass. Shoe friction element is shaped to prismatoid with trapezium-shaped bases. Said bases have recesses to accommodate steel carcass pressure plates. Friction elements fitted in steel carcass are secured by squeezing of lateral pressure plates while two extreme elements are pressed by carcass guide pressure plates. Friction elements are made of iron-base metal.EFFECT: higher safety and wear resistance, better manufacturability.7 cl, 3 dwg
ethod to produce brake pad with noise protection // 2523347
FIELD: machine building.SUBSTANCE: method involves preparation of a frame body with one or more through holes. A damping layer is applied onto the prepared frame body and is covered by a metal plate fitted by folded elements in the form of edges or an edge. The edges or the edge are placed in the holes or the hole of the frame body. Moulding of a brake lining on the frame body is carried out with simultaneous moulding of the edges or the edge of the metal plate into the brake lining.EFFECT: simplified manufacturing of a brake pad with noise protection by forming the noise protection element immediately in the process of the pad manufacturing without the necessity to arrange for separate processes of the protection element production and its installation on the pad.

Friction article // 2513882
FIELD: machine building.SUBSTANCE: proposed article comprises perforated metallic carcass and friction element vulcanised thereon and anti-noise metal plate with bent-off elements. Friction element is equipped with ledges arranged inside the holes. Bent-off elements are secured in metal carcass holes to friction element ledges. Polymer damping play is fixed at metal carcass surface opposite that whereon friction element is vulcanised. Damping layer surface facing aforesaid anti-noise metal plate has ledges and recesses. Bent-off elements of anti-noise metal plate are composed of boards and locked in holes of metal carcass to friction element ledges with fixing to said carcass. Height of said boards is smaller than metal carcass depth.EFFECT: higher noise absorption, simplified attachment and manufacture.3 dwg

Friction article // 2513353
FIELD: machine building.SUBSTANCE: proposed article comprises perforated metallic carcass and friction element vulcanised thereon and having ledges arranged inside perforations. Polymer damping layer and anti-noise metal plate with bent-off elements are locked in carcass holes towards friction element ledges. Polymer damping layer is locked at carcass surface opposite that whereon friction element is vulcanised. Said bent-off elements of anti-noise metal plate are made as boards to be locked in said perforations towards friction elements ledges without locking to said carcass. Height of said friction element ledges arranged inside the boards is smaller than metal carcass depth. Height of said friction element ledges arranged between boards and carcass hole walls is larger than the height of said friction element ledges arranged inside the boards but not larger than metal carcass depth.EFFECT: higher noise absorption, simplified attachment and manufacture of anti-noise plate.3 dwg

Friction article // 2513351
FIELD: machine building.SUBSTANCE: proposed article comprises perforated metallic carcass and friction element vulcanised thereon and having ledges arranged inside perforations. Polymer damping layer and anti-noise metal plate with bent-off elements are locked in carcass holes towards friction element ledges. Polymer damping layer is locked at carcass surface opposite that whereon friction element is vulcanised. Said bent-off elements of anti-noise metal plate are made as boards to be locked in said perforations towards friction elements ledges without locking to said carcass.EFFECT: higher noise absorption, simplified attachment and manufacture.3 dwg
anufacturing method of brake pad, and brake pad // 2504703
FIELD: machine building.SUBSTANCE: method consists in addition of a binding agent to carrying material with high specific surface and having open porosity. Then, carrying material and binding agent are mixed till the carrying material is wetted enough with the binding agent. After that, a functional substance is added, which is partially received with the carrying material. Friction material includes carrying material with high open porosity, which is wetted with a binding agent and onto which a functional substance is applied or to which a functional substance is added. Brake pad includes friction material made by means of a method of addition of functional substance that is partially received by the carrying material. Brake pad containing the friction material with the carrying material with high open porosity, onto which functional substance is applied or to which functional substance is added.EFFECT: reduction of brake noise; improvement of comfort.21 cl

Nao copper-free friction item // 2503859
FIELD: machine building.SUBSTANCE: friction item includes a polymer composite friction element that additionally contains abrasive disperse particles.EFFECT: improving reliability and operating characteristics of friction items at operation owing to removing particles of adhesion transfer without deterioration of wear resistance and friction characteristics of the item, and excluding adhesion of transfer particles.

Friction shoes from sintered material for railway car disc brakes // 2501998
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

Composite braking clamp for locomotives and rail motor cars // 2499711
FIELD: transport.SUBSTANCE: invention relates to railway transport, particularly, to rolling stock braking equipment. Braking clamp comprises steel carcass and arc-like body consisting of clamp body main part and shaped part with groove made therein. Arc-like body consists of separate elements secured at steel carcass. Elements of clamp body main part are made of friction material while and those of shaped part are made of antifriction material. Friction material friction factor is 1.5-10 times higher and abrasion resistance 1.5-3.5 times higher than those of antifriction material. Friction elements of clamp main part feature different height. Higher friction elements are located at steel carcass edges.EFFECT: lower noise in braking, reduced wheel flange and side wear, increased locomotive MTBR, higher stability and reliability.6 cl, 3 dwg

Railway vehicle braking clamp // 2499710
FIELD: transport.SUBSTANCE: invention relates to railway transport, namely, to railway vehicle braking clamps. Braking clamp comprises composite friction element, steel wire carcass, solid iron insert electrochemically coated with bronze alloy, arranged at clamp center and inserted into said composite friction element. Steel wire carcass represents two closed frames inserted in said composite friction element of clamp rear side, along clamp edges. Inner parts of two closed frames are overlapped and bent outward from clap rear side to make ear for cotter pin. Clamp rear side has steel gauze or perforated tin inserted in composite friction element. Iron insert with bronze alloy at its top idle part has the slot at its rear with inserted composite friction element with cotter pin ear and supports arranged in symmetry on insert both sides. Insert top idle part is inserted in steel carcass and clamped therein. All metal part of the clamp stay indirect contact.EFFECT: higher reliability, longer life.1 dwg
Friction item // 2498125
FIELD: machine building.SUBSTANCE: friction item includes a polymer composite friction element. The composition of the polymer composite friction element includes disperse particles and particles from the material able of oxidation under high temperature and formation of abrasive particles.EFFECT: improving reliability and performance characteristics of friction items in the course of operation.

Brake pad with composite inserts for locomotives and rail motor cars // 2494901
FIELD: transport.SUBSTANCE: invention relates to railway transport, particularly, to rolling stock braking equipment. Brake pad comprises steel carcass and iron arched body. Said arched body consists of the pad body main section furnished with cylindrical inserts arranged in groups and pad body shaped section with groove made therein to receive inserts to be fitted therein. Said pad has extra metallic carcass to support cylindrical inserts of the pas body main section and shaped section ridged inserts. Main section cylindrical inserts are made of composite friction material with friction factor higher than that of the base. Shaped section ridged inserts are composed of shaped elements fitted in pad grooves in the plane in contact with wheel tread flange interacting with tail side surface. Inserts are made of antifriction material with friction factor lower than that of the base and abrasiveness lower than that of the base and inserts fitted in pad body main section.EFFECT: lower noise in braking, reduced wheel flange and side wear, increased locomotive MTBR, higher stability and reliability.3 dwg

ethod of producing brake plate blanks of composite carbon-carbon materials and unit to this end // 2493935
FIELD: process engineering.SUBSTANCE: invention relates to production of friction elements of brake plates for aircraft and surface vehicles. Proposed method comprises cutting of carbon fiber to preset lengths with feeding voltage from power source to cutting tool working element, dosed feed of fiber lengths along with binder into mixing chamber forming section with earthed bottom, mixing and blank forming from obtained mix. Proposed unit comprises carbon fiber cutter, binder feeder and mixing chamber. Note here that cutter working element comprises at least one blade and is connected to DC source while mixing chamber comprises forming section with earthed bottom.EFFECT: high mechanical and operating properties.4 cl, 2 dwg

Friction article // 2488028
FIELD: machine building.SUBSTANCE: friction article comprises friction element fixed at metallic carcass provided with working surface and side surfaces, one being perpendicular and another one not perpendicular to working surface. Friction element working surface features roughness greater than that of side surface perpendicular to working surface and smaller than that of side surface not perpendicular to working surface. Said side surface not perpendicular to working surface is furnished with grooves.EFFECT: reduced possibility of strain concentration at article surface sections, crack formation and rupture of separate surface sections in initial period of operation.2 dwg
Friction disc // 2484328
FIELD: machine building.SUBSTANCE: friction disc is made of polymer friction composite with polymer matrix of rubber cured stock resisting the gasoline effects. Liquid substance immiscible with oil wherein friction disc is operated is added to said polymer friction composite.EFFECT: higher durability due to ruled out oil penetration into friction composite.

Friction item // 2483232
FIELD: machine building.SUBSTANCE: friction item includes a metal frame with holes, a friction element moulded to it, a polymer damping layer and a noise-protective metal plate with unbent elements. Friction element is equipped with projections arranged inside the holes. Unbent elements are fixed in the holes of the metal frame to projections of the friction element. Polymer damping layer is fixed on the surface of the metal frame, which is opposite to the surface, to which the friction element is moulded. The damping layer surface facing the antinoise metal plate is provided with projections and cavities. Unbent elements of the antinoise metal plate are made in the form of boards and fixed in the holes of the metal frame to projections of the friction element without being attached to the metal frame.EFFECT: increasing noise-absorbing capacity of the item due to optimum arrangement of a noise-absorbing layer, simplifying fixation of an antinoise plate and reducing complexity of manufacture of the antinoise plate.3 dwg
 
2551358.
Up!