Pad disc brake
The invention relates to a transport machine building, and is intended preferably for disk brakes of motor vehicles. The requested block includes a friction plate and a metal frame having diverging outward radial protrusion, which made an additional radial ledge. Additional radial protrusion is made with narrowing in the connection zone with a radial protrusion. The technical result is to simplify installation and improve reliability. 2 Il. The invention relates to the use in disc brakes of vehicles and various techniques of brake pads with special tabs for springs radial squeezing the brake pads.Analogous to the claimed invention is a pad disc brake including a friction plate and a metal frame having diverging outward radial projection (see U.S. patent 4498564, IPC 7 F 16 D 65/02, 1985). The essential features of similar "friction plate and metal frame having diverging outward radial ledge" match the essential features of the claimed invention.The disadvantage of analog is the complexity of installation timney design of the spring, as well as the lack of reliability of the springs under impact loads and high levels of vibration, leading to a weakening of the connection of the spring with the tab and to the possibility of its uncompensated skew and margin.The prototype of the claimed invention is a pad disc brake including a friction plate and a metal frame having diverging outward radial protrusion, which made additional radial projection, the height of the additional radial protrusion is 0.4 height of the radial projection (see drawing to the Technical conditions 38.114427-93 "Strap with pad disc brake for a vehicle VAZ-1111 and its modifications", 1993). The essential features of the prototype of the friction plate and metal frame having diverging outward radial protrusion, which made an additional radial ledge" match the essential features of the claimed invention.The disadvantage of the prototype is the complexity of installation of the release spring on the block, primarily because of the need for the fragment of the additional protrusion for fixing the spring, and the lack of reliability of the springs under impact loads and high levels of vibration, is the bias of the spring and fall (separation) from the ledge.The challenge which seeks the invention is to simplify the mounting of the release spring, primarily by eliminating the need to fragment the additional ledge and improve the reliability of the springs under impact loads and high levels of vibration by reducing the possibility of uncompensated bias of the spring and fall off the ledge.To achieve the technical result in the pad disk brake including a friction plate and a metal frame having diverging outward radial protrusion, which made an additional radial protrusion, an additional radial protrusion is made with narrowing in the connection zone with a radial ledge.The essential features of the claimed invention "additional radial protrusion is made with narrowing in the connection zone with a radial protrusion are different from the characteristics of the prototype.The invention is illustrated in the drawing, in Fig.1 which presents a block, view from the side of the friction surface of the friction lining; Fig.2 is a view of the radial protrusion and the additional radial ledge.The block contains a flat metal frame 1 and the friction pad is placed radially with respect to the center of rotation of the brake disc and the additional ledge 4, also which is radial relative to the center of rotation of the brake disc. The width of the additional radial protrusion in the area close to the radial protrusion is less than the width of the remaining part of the additional ledge.A specific example of the invention is a pad disc brake car "OKA", a frictional element which is made of polymer friction composite tier-240, and the metallic frame includes a radial protrusion with a width of N~11 mm and an additional radial protrusion with a width h~ 4,3 mm Additional protrusion has a constriction, where the width of the additional protrusion is ~3,9 mmMaking additional radial ledge with narrowing allows to fix the spring on the block without additional fragment of the ledge, as the mounting of the spring on the ledge you can do with tightness in a wide area, with the spring in a narrow zone will have sufficient clearance. In the result, it is possible to avoid the decay of the spring under impact loads and vibrations in a real environment. No Rocklake avoids changing the size and shape of the additional ledge (which significantly reduces the possibility of jamming of the spring in a skewed state and reduces the possibility of jamming.
ClaimsPad disc brake including a friction plate and a metal frame having diverging outward radial protrusion, which made an additional radial protrusion, wherein the additional radial protrusion is made with a smaller width in the connection zone with a radial protrusion.
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
FIELD: machine building.
SUBSTANCE: invention relates to field of rail transport, particularly to linings of disk brakes. Lining of disk brake contains load-bearing slab, on which there are fixed elements for bearing on it of friction elements. Friction elements are installed single or pairwise on ends of resilient reference elements. Reference elements are fixed with gap on load-bearing slab fixing facility so that friction elements are located on projecting and free-variable end points of reference elements. Reference elements are located on load-bearing slab so, that its main axis is oriented in essence perpendicularly to radius, passing through center of brake disk.
EFFECT: improvement of technical features of lining and noise reduction during lining operation.
12 cl, 11 dwg
SUBSTANCE: invention relates to railway transport, particularly, to rolling stock braking equipment. Brake comprises brake shoe holder swinging about axis and at least one brake shoe. Said shoe has wearing section interacting with friction pair. Brake shoe geometry allows wear centre, in the case of skew wear, to displace so that torque counteracting said skew wear originates. Multiple polygonal brake shoes may swing about their holders in all directions. Cross section of wearing section narrows toward pair of friction in whatever plate perpendicular thereto.
EFFECT: reduced skew wear, longer life.
5 cl, 10 dwg
SUBSTANCE: proposed brake comprises housing and actuator assembly. Housing comprises pad with pad arm. Actuator assembly comprises actuator and element with brake block arranged to translate along motion axis. Said block is fitted on said element to move on support with pressure spring. Pressure spring serves to generate pressure force FR between brake block and surface of fit in housing pad. Pressure spring fit surface is located antiparallel with motion axis. Note here that angle α between fit surface and motion axis exceeds 0°.
EFFECT: better ventilation of brake blocks.
9 cl, 3 dwg