Brake device for vehicle
(57) Abstract:The invention relates to a disc brake device for a vehicle. Brake device for a vehicle includes at least one plate having two essentially flat surfaces. The first of these surfaces are partially covered in its Central part of the friction material. The overlay contains from two sides referred to the Central part of the two side loops. Each of the lugs has a relatively large width in the first direction almost perpendicular to the second direction connecting the ears. Referred to the Central part connected to the two lugs of the connecting zones having a relatively small width in the first direction. At a distance from each of the connecting zones, each lug has a width along the perimeter greater than the width of this zone. Every ear pads has a round shape. On said second surface are flat springs, which have the shape of a star with at least three beams. The corresponding spring attached to each eye to its Central part. Each spring is hanging over the periphery of the corresponding loops in at least two points that are spatially separated of midfi the possibility of returning the pads into the resting position immediately after releasing the brake. 7 C.p. f-crystals, 12 ill. The present invention relates to a brake device for a motor vehicle comprising at least one plate having two essentially flat outer surfaces, the first of which is partially covered in the Central area of the friction material, and the pad further comprises each of the two sides of this Central area of the two side loops, each of which has a relatively large width in the first direction almost perpendicular to the second direction, connecting these ears, the Central region is connected to two oscam corresponding connecting zones having a relatively small width in the first direction, so outside of the connecting zones, each ear has a perimeter that is greater than the width of this zone.The device in accordance with this definition, which embody a certain amount of disc brakes are well known as shown, for example, in U.S. patent N 4044864.Very long-standing challenge in the disk brake, in particular, those that use overlays videopreteen type is the return of the pads in position on the opposite surface of the disk relative to the surface, to which facing the piston rubs against the disk even when the brake is actuated and wears out prematurely, at the same time, unnecessarily slowing the movement of the car.The aim of the invention is to develop a braking device, which, being of simple design solves the problem of returning the pads into its resting position immediately after releasing the brake.To this end, we offer brake, which, moreover, corresponds to the above preamble, is essentially characterized in that each ear pads carries at its second surface, at least a flat spring which is attached to the eyelet its Central part and which overhangs the perimeter of the eye, at least in two points, which are spaced between themselves along this perimeter.Preferably, the brake device includes first and second friction linings of the above described type and is characterized in that it further comprises two brake element, which can move relative to each other, one of which is a bracket, osedlaya the brake disc and the other of which is a holder attached to the vehicle; clamping means, the soda is UEMOA piston; and guiding means enabling the bracket to slide relative to the holder when the actuation clamping means, and first and second friction linings, converted, respectively, to the first and second surfaces of the disk, caught between the piston and bracket and is moved in the third direction by actuate the clamping means to be attached to the disk, and ears, at least one of the pads set to the appropriate section (s) of the holder, each of which extends in the third direction and has an opening facing in a second direction and having a size smaller than the width of the eye, which he accepts.For example, you can ensure that the cylinder was installed in the ring attached to the holder, and relative to which the cylinder can slide under the action of the braking force.Then the bracket can be attached Rethimno to the second plate to be attached to the latter in a first direction radially relative to the disk, and the ears of the second pads, preferably of circular form, mounted in said housing holder.To attach to each other vtoa has at least one protrusion passing through the cutout, and the Central spring is attached to the ledge, resting on one edge of the cut.Under these conditions it is possible to make the bracket freely rested on the ring.Preferably, each flat spring, essentially has the shape of stars, including at least three branches, and that the spiral spring is connected to the center plate by means of rivets having the rim remote from the spring in the rest position of the latter and serves to limit the deformation of this spring.Finally, preferably, each lug lining is protected by a cylindrical cap made of dust-proof material and held on the first surface of the lining.Other characteristics and advantages of the invention will become apparent from the following description by way of non-limiting example with reference to the accompanying drawings, on which:
Fig. 1 depicts in his right side partial section along the line I-I of Fig. 11 and the brake device according to the invention, and in the left part of the appearance of this device in the direction of the arrow 1 of Fig. 11,
Fig. 2 depicts the appearance of all tormoznoy the pad, according to the invention, in the form of a cut in one of its transverse springs,
Fig. 8 depicts a perspective view of the flat spring according to the invention,
Fig. 9 depicts a perspective view of the holder brake device according to the invention,
Fig. 10 depicts a perspective view of the calipers brake device according to the invention seen from the side indicated by the arrow II of Fig. 11,
Fig. 11 depicts a view in section of a brake device according to the invention, and
Fig. 12 depicts a perspective view of the bracket of the brake device according to the invention seen from its end.As shown in the figures, the invention, in General, relates to a disk brake, which typically contains two brake element, which can move relative to each other, one of which is a bracket 1, osedlaya brake disc D (Fig. 11), and the other of which is a holder 2 attached to the vehicle; clamping means containing the cylinder 3, rushing to the bracket 1 and having opposite first surface D1 of the disk D, the hole 30 is closed by a piston 31; a guiding tool that should be defined below and which enables the bracket 1, slide the gasket 41 and 42.These first and second friction pads 41 and 42, converted, respectively, to the first and second surfaces D1 and D2 of the disc D (Fig. 11), are trapped between the piston 31 and the end 10 of the bracket 1 and can be displaced in A direction axially relative to the disk by increasing the pressure in the cylinder 3, so the piston 31 on the one hand, and the end 10 of the bracket 1 on the other hand applied to the disc D.Each plate, for example, 41 or 42 has two almost flat surface, such as 411, 412 and 421, 422, the first of which 411, 421 is partially covered in the Central region P (Fig. 1) friction material F.In addition, each plate includes two sides from the Central region P two side loops round shape, such as 41a, 41b and 42a, 42b, each of which (Fig. 1) in the direction R almost radially in relation to the disk, so almost perpendicular to the direction S, the secant to the drive, which connects the ears, has a relatively large width L1, while the Central region P is connected to the two lugs of the connecting zones Z, which in the radial direction R are relatively small width Lo.Under such circumstances, every ear is at some distance from the on to the appropriate body in the holder, such as 21a, 21b, 22a or 22b (Fig. 9) which extends in the axial direction A and which has an opening facing in secodam direction S and having a size less than the width L2 L1 of the ear in which it is inserted.According to the invention, each eye, at least on the second surface of the lining, such as 412 or 422 has a transverse spring, for example, 51a, 51b, 52a and 52b, which are connected with this eyelet its Central part (Fig. 8) and which overhangs the perimeter of the eye, at least at two points, for example, 521, 522, which are spatially separated between themselves along this perimeter.As shown in Fig. 8, each flat spring preferably has the shape of stars, including at least three branches, and in this case, seven.Preferably, each flat spring (Fig. 3-7) is fixed at its center to the plate by rivets, for example, 520, which passes through the ear pads in the center.As shown in Fig. 3-7, rivet 520, at least on the same side where the spring 52b has a rim 521, remote from the spring in the rest position of the latter and serves to limit the deformation of this spring.More precisely, Fig. 3 illustria in the direction of the arrow and flat spring 52b, which is located inside the housing 22b, followed by the eye as it moves only with a delay, due to the elastic deformation of this spring, which forces them to rely on the rim 521. When the stop plate to exert pressure (Fig. 5), the flat spring 52b again occupies its rest position, causing the rebound "r" pads against the disc. In proportion to the wear of the "U" friction material F plate moves to the disk, as shown in Fig. 6, which is similar to Fig. 4. Remove the worn pads with a view to its replacement leads to deformation of the spring 52b in the opposite direction relative to the deformation, which latter is subjected during braking.As shown in Fig. 3-7, each ear pads can be protected by a cylindrical cap, such as 6b, made of dust-proof material and held on the first surface of the lining, such as 421 rivet 520.In the preferred embodiment of the invention, the cylinder 3 is in the ring 23 attached to the holder (Fig. 9 and 11) and on which the cylinder can slide under the action of the braking force.For example, the axial position of the cylinder relative to the ring 23 is fixed krugosvet last slide during braking.As shown in Fig. 11, the bottom 3a rests on the bottom 11 of the calipers, located on the opposite side from the end of last 10, through the hole 11a in the bottom 11 is held and fixed on the bottom of the blocking element 8 discharge pipe 32 of the cylinder 3.Due to this arrangement, the cylinder is always relative to the ring 23, the position which gives the opportunity to eliminate dead stroke as a result of wear of the "U" of the friction lining material F.In addition, since the ears 42a, 42b of the second pads 42 are installed in the housings 22a, 22b of the holder, to hold the calipers enough to attach it to the second plate in the radial direction R.For this purpose, as shown in Fig. 1, 2 and 11, calipers 1 is attached Rethimno to the second plate 42 via a Central spring 9.More precisely, in the Central part of the bracket has an aperture 12 ( Fig. 1 and 10) through which pass two tabs, for example, 423 of the second pads 42 or 413 and 414 of the first pads 41 and the Central spring 9 is fixed on these ledges and rests on the edges 12a, 12b of the recess 12.Under these circumstances the Central part of the bracket 1 freely rests on the ring 23, the direction of the bracket in relation to the der the second plate 42, which itself goes in the holder. 1. Braking device for a motor vehicle comprising at least one cover plate (41, 42) having two essentially flat surfaces(411, 412, 421, 422), the first (411, 421) of which are partially covered in its Central part (P) of the friction material (F), and the overlay contains from two sides referred to the Central part (P) two side eyelet (41a, 41b, 42a, 42b), each of which has a relatively large width (L1) in the first direction (R), almost perpendicular to the second direction (S) connecting the ears, referred to the Central part (P) is connected to the two lugs of the connecting zones (Z) having a relatively small width (L0) in the first direction (R), so that at some distance from each connecting zone every ear (41a, 41b, 42a, 42b) has a width along the perimeter greater than the width (L0this area, characterized in that each lug (41a, 41b, 42a, 42b) of the pads has a round shape, while at the said second surface (412, 422) are flat springs (51a, 51b, 52a, 52b), which have the shape of a star with at least three beams, with the corresponding spring attached to each ear its Central part (C), each spring davisae the s between them along the perimeter of the ear.2. The device under item 1, characterized in that it comprises first and second friction lining, two elements (1, 2) brakes, which can move relative to each other, and one of the elements is a bracket (1) covering the brake disc (D), and the other element is a holder (2) for attaching to the vehicle, the clamping means containing the cylinder (3), located on the bracket (1) and having turned to the first (D1) of the two surfaces of the brake disc hole (30), closed by a piston (31), guide means (21a, 21b, 22a, 22b) that enables the sliding bracket relative to the holder when the actuation clamping means, and the aforementioned first and second friction plates (41, 42), addressed respectively to the first and second surfaces (D1, D2) disk made with the possibility of clamping between the piston and bracket and move in a third direction (A) due to actuate the clamping means for pressing the disk, and both plates provided with lugs and ears (41a, 41b, 42a, 42b) at least one of the plates mounted in the respective housing (21a, 21b, 22a, 22b) of the holder, each of which extends in the third direction (A) and has a hole, ori is installed.3. The device according to p. 2, characterized in that the cylinder is installed in the ring (23) constituting one piece with the holder (2), while the cylinder is made slidable relative to the ring under the action of the braking force.4. The device according to p. 3, characterized in that the bracket (1) attached Rethimno to the second plate (42) in the first direction (R) radially relative to the disk, and ears (42a, 42b) of the second pads installed in these buildings (22a, 22b) of the holder.5. The device according to p. 4, characterized in that the bracket (1) has a cutout (12) extending in a third direction (A), and the second cover plate (42) has at least one projection (423) passing through the cutout, and the Central spring (9), attached to the ledge, leaning on the edge (12a, 12b) of the cut.6. The device according to any one of paragraphs.3 to 5, characterized in that the bracket is freely mounted on the ring (23).7. The device according to p. 6, characterized in that the spiral spring is attached to its Central part (C) to the plate by rivets (520), which by the spring has at least the rim (521), which is remote from the spring to the position of rest of the latter and serves to limit the deformation of the spring.
FIELD: transport mechanical engineering.
SUBSTANCE: disk brake comprises braking disk, active and reactive braking blocks, support, and mechanism for releasing braking blocks. The mechanism is the cam-roller type. The drive of the reactive block is made of a floating frame composed of active and reactive beams interconnected through the ties.
EFFECT: enhanced reliability.
FIELD: mechanical engineering.
SUBSTANCE: brake mechanism comprises two pivotally interconnected levers and two opposite brake blocks secured to the levers for permitting periodical interaction with the rotating disk. The brake mechanism is provided with air-operated cylinder mounted at one of the ends of the lever so that its housing is secured to one of the levers and the rod is secured to the other lever. The brake blocks are mounted at the second end of the levers whose pivot joint is interposed between brake blocks and air-operated cylinder. One of the brake blocks is made of a current-carrying bus spring-loaded with respect to the lever for permitting connection with a power source. The levers are spring-loaded one with respect to the other by means of an extension springs interposed between the pivot joint of levers and air-operated cylinder. The rotating disk is made of two members whose bases are rigidly interconnected. One of the members is mounted for permitting contact with the current-carrying bus, is made of a conducting material, and is provided with a member for releasing voltage .
EFFECT: expanded functional capabilities.
FIELD: mechanical engineering, namely, disk brakes, having floating or sliding support.
SUBSTANCE: disk brake contains body for positioning braking mechanism on it and support, detachably connected to body. Disk brake is formed of various modules. Body acts as supporting means for fastening other modules. One of modules is formed by support together with at least three guiding fingers. Lid of braking mechanism is strongly connected to body. Seal is positioned and compressed during assembly between lid and body.
EFFECT: increased technical characteristics of disk brake.
18 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: drive mechanism of disk brake of vehicle includes bracket consisting of case and cover, brake drive shaft and screw gear installed in bracket, and also lever mounted on external side of bracket on brake drive shaft. A mechanism of automatic control of the brake including a driving link is installed inside the lever. The driving link of automatic control of the brake is arranged coaxially to the brake drive shaft and is kinematically coupled with the bracket. A movable in circumferential direction packing is positioned between the bracket and a controller of the drive lever so, that internal cavities of the bracket and the lever form a common cavity sealed from the side opposite to the bracket.
EFFECT: simplification of design, raised maintainability and service life of mechanism of vehicle dick brake drive.
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
SUBSTANCE: proposed disk brake block comprises two flanges with appropriate friction linings to allow friction against disk. Said flanges are articulated on ends of two levers driven by brake force source that comprises first piston displacing along first axis A. Brake block comprises also assembly to automatically control the gap between friction linings and said disk. First piston transmits braking force to pusher arranged inside aforesaid source to increase and transmit said force via said assembly and, along second axis B perpendicular to said first axis A, to ends of said levers perpendicular to those where said flanges are articulated with.
EFFECT: higher operating performances.
12 cl, 7 dwg
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
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.
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
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 engineering; brake systems of wheeled vehicles.
SUBSTANCE: proposed wheeled vehicle contains brake mechanisms, brake mechanism liquid cooling device, stop signaling electric system and windshield washer including reservoir with liquid, pump and pump drive motor electrically coupled with supply source through switch. Washer is furnished with two-position electromagnetic valve whose input is connected with pump, and normally open output, with washer, and normally closed output, with brake mechanism cooling device through normally-closed electromagnetic valve. Electromagnet of two-position valve is connected to stop signaling circuit, electromagnet of normally-closed valve, to threshold device electrically coupled with supply source and brake mechanism temperature sensor, and switch is furnished with electromagnetic switching drive connected to stop signaling circuit. Friction pads are secured on brake disks, and brake shoes are made hollow, with partitions inside. Input of brake shoe space is hydraulically connected with pump of brake mechanism cooling device, and output, with reservoir with liquid.
EFFECT: improved efficiency of braking and traffic safety.
FIELD: mechanical engineering.
SUBSTANCE: brake member comprises ring provided with at least one face ring friction surface made of a carbon material and aspiration grooves made in the friction surface. The aspiration grooves are oriented transversally to the peripheral round contours of the face ring friction surface to define cross-pieces from the side of one of the peripheral round contours. The brake member is provided with additional grooves that are interposed between the cross-pieces of the aspiration grooves and whose exits face the peripheral round contour of the friction surface opposite to the direction of the exit of the aspiration grooves.
EFFECT: enhanced reliability and prolonged service life.
12 cl, 8 dwg, 1 tbl
FIELD: automotive industry; vehicle disk brakes.
SUBSTANCE: one or more brake shoes of disk brake are arranged on fastening plates or on other supports for shoes and/or caliper or like device. Caliper or like device and support for shoes are made for taking up resultant counteracting forces at braking in plane perpendicular to surface of contact between caliper or like device and each support for shoes. Calculated point of action of resultant counteracting forces is within the limits of said surface of contact to provide balancing of brake shoes, thus excluding tendency of turning of shoe supports from caliper or to center of brake. Said calculated point of action of counter acting forces is found from following equation where Heq is perpendicular distance from plane through center of brake disk in which point of action of counteracting forces is found; Ry and Ri are radii from center of brake disk to outer and inner sides of brake shoe; α is angle between line passing through center of brake shoe and center of brake disk and corresponding end of brake shoe.
EFFECT: optimization of position of point of action of counteracting force and taking up of counteracting force in one plane.
10 cl, 4 dwg
FIELD: machine building.
SUBSTANCE: invention is related to the field of railway transport, namely to disc brake mechanisms used in railway rolling stock. Brake block consists of frame and friction element that is monolithically connected to it. There are mounting lugs installed on back side of frame. Friction element consists of 1-4 inserts. Inserts are arranged as integral or composite. Integral inserts are installed in frame chambers and are arranged in the form of truncated pyramids with base in the form of trapezoid or polygon that are inverted with their lower base to working surface of brake block, with inclination of side walls of α=10°-15°, with provision of "dovetail" joint to frame chambers. Composite inserts are made of parts, parts are installed in cells of frame chambers and are arranged in the form of truncated pyramids or cones inverted with their smaller base to working surface of brake block with inclination of side walls of α=10°-15°, with provision of "dovetail" joint to cells of frame chambers. Frame material additionally covers internal side walls of integral inserts or internal side walls of composite insert parts. There are windows provided in external side walls of frame, at least on two sides opposite to every insert, and inserts have protrusions that correspond to windows. There are heat resistant elastic damper bushings placed in mounting lugs.
EFFECT: increased heat resistance of block, operational durability, reliability and mechanical strength.
9 cl, 8 dwg
FIELD: automotive industry.
SUBSTANCE: invention relates to automotive industry, particularly, to disk brakes. Proposed disk brake consists of brake caliper and brake throw-in mechanism. The latter is encapsulated into brake caliper and incorporates booster to transmit braking force to push rod arranged to slide in the said brake caliper. It is furnished with pressure plate, fitted on its end on the brake disk side, to transmit braking force to brake disk with the help of brake shoe lining holder and brake shoe lining. Aforesaid pressure plate is jointed to the brake shoe lining holder so that, in applying and releasing the brake, aforesaid push rod shifts from the axis and moves in the brake caliper with the help of aforesaid holder. The latter can move radially and tangentially in the said caliper or said holder. There are appliances to joint the disk brake throw-in mechanism with the push rod pressure plate, on the side opposite the brake shoe lining.
EFFECT: reduces weight, simplified assembly and mounting.
16 cl, 10 dwg
FIELD: machine building.
SUBSTANCE: invention relates to machine building, namely, to friction bake shoe linings of disk brakes. Proposed device comprises moulding material attached to load bearing plate with opposite surfaces, one or several out-of-round extrusion orifices arranged over the plate depth, and ledges or any other fixed mounting ledge. Aforesaid moulding material is arranged above aforesaid opposite surfaces after extruding through aforesaid extrusion orifices to produce a homogeneous structure. In this structure moulding material on one side of load bearing plate acts as friction material of the lining, and, on the other side, it acts as a noise-reducing element. The number, shape and arrangement of extrusion orifices may vary to vary noise-reducing properties of the block, thus, reducing risks of brake system components locking.
EFFECT: improved noise-reducing properties.
49 cl, 8 dwg
FIELD: machine building.
SUBSTANCE: in compliance with this invention, method proposes producing two brake blocks from a plate. The latter comprises fist layer of friction material and second layer for bearing plate of brake block. First layer covers completely second layer. Part of friction material layer is removed the plate to comply with peripheral shape of every brake block so that there is no liner friction layer on a part of material layer of bearing plate. Plate is cut to comply with bearing plate shape.
EFFECT: lower labor input, no necessity in warehousing.
5 cl, 3 dwg