Rear disc brake car
(57) Abstract:The invention relates to transport machinery, namely to the braking system of the vehicle, in particular to the rear brake, and can be used in the Parking brake rear disc brake car. Rear disc brake car contains the disk, caliper, Parking brake rod-plunger and the shaft. What is new is that the rod-plunger parallel to the axis with its two sides across the width of the stem of the plunger is made a flat surface, which are associated with Cams, upper and lower, cylindrical shape, and the inner sides perpendicular to the parallel surfaces on the piston, the plunger is removed, the chamfer is longer than it is not less than the diameter of the shaft. Each Cam with a cylindrical surface is made a bulge in the side of the shaft. On the shaft, perpendicular to the axis is made through the transverse groove and perpendicular to it along the axis is made a longitudinal groove. The transverse groove is designed to accommodate the stem of the plunger in part flat parallel surfaces, and a longitudinal groove is made hollow and is designed to interact simultaneously with the upper and lower Cams. The centers of the surfaces of each of the a, placed parallel to the axis of the shaft, made to each other at an angle of at least 90o. The technical result is to simplify the design and increase the reliability of the Parking brake applied to the rear disk brake. 1 C.p. f-crystals, 4 Il. The invention relates to the automotive industry, namely to the braking system of the vehicle, in particular to the rear brake, and can be used in the Parking brake rear disc brake car.Known disk brake according to the author's certificate of the USSR 1627792, CL F 16 D 55/08, 1991, combining the functions of the service brake and Parking brake. It consists of a disk mounted on the shaft, and the support plate covering the drive. In the window of the caliper on the fingers installed the pistons, which are stocks that are held by nuts. Fluid flow is produced through the channels. Swing arms with slots upper ends pivotally connected to the housing and the rod of the control cylinder. In the slots of the levers installed star wheels with eyes and curly slits. The fixed position of the star wheels is provided by dogs. The upper part of the tooth of each pawl is made with a longitudinal slot, in which is fixedly mounted oami.The disadvantage of this brake is a very complex structure with a very large number of small parts, which, in turn, dramatically reduces the reliability of the mechanism as a whole.Known brake on patent UK 8811920, CL F 16 D 55/22, 1988 , containing a piston with hydraulic or mechanical actuator; the actuator of the Parking brake with the rod-plunger and the shaft, between which is placed a rusk; mounted on the housing of the control element; transmitting elements; pereustraivayut device by means of which the piston when the hydraulic effect automatically reconfigures itself and hydraulically unloaded state is rigidly connected with the tuning element; emphasis on which rests the drive element; a return spring, bias control element in the direction of the stop; transmitting elements in a prescribed and fixed condition are of such dimensions that the recoil spring regulating element operates through the transmitting elements on the drive element and when removing the mechanical drive supports the actuator at the stopper, then both the regulatory element is supported transmitting elements at a distance X from its stopper. the I during operation of the actuator. The second stopper associated with a regulatory element and limits the mechanical excitation of the brake, and where both the stop connected with a driving element, formed by two sides of the same ledge of the building.The disadvantages of this brake are that the presence of the intermediate drive element cracker reduces the reliability of the brakes, distorts the transmitted force on the piston.Known brake on the United Kingdom patent 2165903, CL F 16 D 55/224, 1986, accepted by the applicant for the prototype.However, he has a complex structure and lack of reliability in the work.The technical task of the invention is to provide a simple and reliable Parking brake applied to the rear disk brake.The problem is solved in that in the proposed solution on the piston, the plunger parallel to the axis with its two sides across the width of the stem of the plunger is made a flat surface, which are associated with Cams with a cylindrical surface, top and bottom, and on the inside, perpendicular to the parallel surfaces on the piston, the plunger is removed, the chamfer is longer than it is not less than the diameter of the shaft and each Cam with calindy groove, and perpendicular to it along the axis is made a longitudinal groove and a transverse groove is a through and is designed to accommodate the stem of the plunger in part flat parallel surfaces, and a longitudinal groove is made hollow and is designed to interact simultaneously with the upper and lower jaws and the said chamfer is made on the stem of the plunger.In addition, the cross groove of the shaft and a longitudinal groove made adjacent.In Fig. 1 shows a rear disc brake, General view, vertical section;
in Fig.2 - rear disc brake Assembly, side view;
in Fig.3 - node I in Fig.1: interaction of the shaft and shaft-pusher;
in Fig.4 - shaft and the piston, a plunger in axonometry.Rear disk brake of the vehicle includes a brake disk 1, a support 2 mounted on the caliper mounting bracket 2 bracket 3 cable mounting 4 Parking brake. In the support plate 2 on the one hand is placed in the cylinder 5, and on the other set of brake pads 6, covering the brake disk 1. In the cylinder 5 with the possibility of reciprocating movement is set piston 7 with the rod-plunger 8, the output end of which is spring-loaded by a spring 9 and is preloaded nut 10. Perpendicular to the shaft of the plunger 8 is made of the lever 12 and the return spring 13, one end of which is fixed to the bracket 3, and the other on the lever 12. With the end of the rope 4 Parking brake mounted on the lever 12.The interaction of the stem of the plunger 8 and the shaft 11 is as follows.On the rod-plunger 8 parallel to the axis with its two sides across the width of the stem of the plunger 8 is made a flat surface: the top 14 and bottom 15. Surfaces 14 and 15 are associated respectively with the upper 16 and lower 17 Cams with a cylindrical surface. The inner side of the perpendicular to the parallel surfaces 14 and 15 on the piston, the plunger 8 is removed, the 18 inch longer than these surfaces is not less than the diameter of the shaft 11. And each Cam 16 and 17 with a cylindrical surface is made a bulge in the side of the shaft 11. On the shaft 11, perpendicular to its axis, is made transverse groove 19 and perpendicular to it along the axis is made a longitudinal groove 20. Moreover, the transverse groove 19 is made through and is designed to accommodate flat parallel surfaces 14 and 15 of the stem of the plunger 8. And a longitudinal groove 20 is made hollow and is designed to interact simultaneously with the upper 16 and lower 17 Cams and the said chamfer 18, made on the stem of the plunger 8. The chamfer 18 is designed to provide the 17 with the cylindrical surfaces lie on the same line 23 and offset from the axis of the stem of the plunger 8 to the outside. Moreover, the transverse groove 19 of the shaft 11 and a longitudinal groove 20 is made adjacent. Surfaces 24 and 25, are placed parallel to the axis of the shaft 11, are made to each other at an angle of at least 90o.Rear disk brake of the vehicle is as follows.While Parking the car, set the Parking brake. At the same time. pulling rope 4, rotate the lever 12, which twists the return spring 13, thereby turning the shaft 11 around the axis. At this point, the flat parallel surfaces 14 and 15 of the stem of the plunger 8 are located in a transverse groove 19, and the surfaces 24 and 25 of the longitudinal groove 20, respectively, contact: surface 24 with the upper 16 and lower 17 Cams at the same time, and the surface 25 - inch 18. The surface 24 acts on both the Cam 16 and 17, the pressure on them, thereby shifting the rod-plunger 8 and compressing the spring 9 moves the piston 7, which, in turn, moves the brake pads 6, and the brake of the brake disk 1. Such a mutual arrangement of parts Parking brake as a whole remains at all times the Parking lot.Disinhibition is as follows.Loosening the cable 4, the lever 12 with the shaft 11 under the action of a return spring 13 wasini 9 also returns to its original position. While pads 6 apart, releasing the brake disk 1. The car is ready to move.The use of the proposed technical solutions allowed us to obtain a compact and reliable brakes, including the Parking brake, and a direct connection between the shaft and the shaft-pusher excluded intermediate element, simplifying design. 1. Rear disk brake of a motor vehicle comprising a disk, caliper, Parking brake rod-plunger and the shaft, characterized in that the rod-plunger parallel to the axis with its two sides across the width of the stem of the plunger is made a flat surface, which are associated with Cams with a cylindrical surface, top and bottom, and on the inside, perpendicular to the parallel surfaces on the piston, the plunger is removed, the chamfer is longer than it is not less than the diameter of the shaft and each Cam with a cylindrical surface is made a bulge in the side of the shaft, on the shaft, perpendicular to the axis is made transverse groove and perpendicular to it, along the axis is made a longitudinal groove and a transverse groove is a through and is designed to accommodate the stem of the plunger in part flat parallel surfaces, and a longitudinal groove way, made on the stem of the plunger.2. Rear disc brake car under item 1, characterized in that the transverse groove of the shaft and a longitudinal groove made adjacent.
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: engines and pumps.
SUBSTANCE: proposed disk brake comprises caliper, holder secured to vehicle, friction appliances arranged on both sides of disk brake, detachable unit to secure friction appliances, and spring secured to friction appliance to joint first and second wings of caliper. Said caliper has extending part to embrace disk brake on both sides and is furnished with hydraulic cylinder with piston. Note here that caliper is arranged to move on the holder, while disk brake can rotate between said extending part and caliper piston. Holder represents a half passing on only one side of disk brake plane, while guide pins are arranged above disk brake perpendicular to its plane. Detachable unit is arranged partially in the first recess arranged in friction appliance one support and, partially, in second recess made in extending part of caliper and/or holder.
EFFECT: improved braking qualities of caliper and reduced weight.
19 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
SUBSTANCE: container comprises control element arranged at separate bed or at container vessel and connected via transfer assembly with container cover, and wheels. Besides, this container comprises the brake composed of a rod arranged in guides elastically connected with control element or transfer assembly to fir in toothed rim at wheel or wheels.
EFFECT: ease of use.
3 cl, 1 dwg
SUBSTANCE: disc brake comprises floating clamp, brake piston driven by motion converter cartridge rear part of the latter being thrust against the bottom of seat made in said clamp for cartridge and including control shaft extending through seat bottom. Cartridge is locked by yoke resiliently pressed against sear wall. Cartridge pusher has lengthwise ledges composed of rods fitted in seat lengthwise slots. Anti-strain device is arranged between pusher rods and clamp seat slots. This device comprises ring with lugs distributed in circle in compliance with arrangement of rods. Said lugs have cylindrical tabs bent as said lengthwise ledges to lock the pusher and to allow its translation.
EFFECT: simplified production of brake clamp.
8 cl, 10 dwg
SUBSTANCE: invention relates to the automotive industry, particularly, to disk brakes of vehicles. The disc brake comprises a floating clamp, a brake piston driven by a motion converter cartridge, the rear part of the latter being thrust against the bottom of a seat made in the said clamp for the cartridge and including a control shaft extending through the seat bottom. The front part of the cartridge rests against the brake piston. The named part of the cartridge includes a pusher fitted with a disk interacting with a control shaft disk by means of balls located between disks with a possibility of rolling along the paths designed as inclined surfaces for the conversion of the rotary motion of one disk with reference to another into the translational movement of the pusher. The cartridge is locked in its seat by a yoke resiliently pressed against the seat wall. The pusher disk has longitudinal grooves interacting with lock cores and thus holding the pusher from rollover with ensuring freedom of its translational movement.
EFFECT: simplification of fabrication of the brake bracket due to minimising of the quantity of parts of the movement conversion cartridge is achieved.
7 cl, 12 dwg
SUBSTANCE: invention relates to automotive industry, particularly, to brake systems. Disc brake comprises floating clamp, brake piston driven by cartridge converting motion, cartridge rear part resting on the bottom of seat made in said clamp, and includes control shaft extending through seat bottom. Cartridge front part thrusts against brake piston. Cartridge incorporates the disc to interact with control shaft disc via balls arranged the disc to roll in paths made as inclined surfaces for conversion of rotation of one disc relative to another one into translation of pusher. Cartridge is locked by yoke resiliently pressed against sear wall. Said pusher has lengthwise ledges extending to enter said lengthwise grooves made in seat walls to retain said pusher and to allow its translation.
EFFECT: simplified production of brake clamp.
6 cl, 6 dwg
SUBSTANCE: invention relates to machine building, namely, to disc brakes. Disc brake comprises support, clamp, retainer to accommodate the latter for it to displace on said support, seal secured at the recess in retainer and device to pre-stretch said seal in said recess. Said device is actuated at fitting the retainer in place.
EFFECT: simplified production.
14 cl, 5 dwg
FIELD: process engineering.
SUBSTANCE: set of inventions relates to machine building, particularly, to disc brake piston jackets. Claimed piston protection jacket is arranged between the caliper and piston. Said jacket has a bulged fillet made at its inner section to fit in the piston groove and an insert fitted in the jacket at its moulding. Said insert is secured in a circular recess made in the caliper. The jacket can be folded for said insert, mid sections and extreme section to overlap each other. The jacket has lengthwise ribs arranged at the inner section surface to support this section, that is, to facilitate the stiffness and to allow the air to leak outside from said bulged fillet fitted in the piston groove. Claimed brake comprises the piston with protective jacket.
EFFECT: better disc brake piston tightness.
9 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: invention relates to disc brakes. Disc brake for commercial vehicle comprises a brake caliper, a clamping device, at least one adjustable spindle and an adjusting device. Brake caliper extends over a brake disk. Clamping device presses the brake pads against the brake disc. Adjusting spindle rotates by is rotatably mounted in a bridge by means of a corresponding thread, the clamping device engages the bridge.
EFFECT: to increase the reliability.
9 cl, 2 dwg
FIELD: mechanical engineering.
SUBSTANCE: cam-and-lever mechanism comprises cam shaft (1) with cam (2) asymmetrical with respect to the main axis of the mechanism which passes through the center of cam shaft (1), which is the axis of rotation, and the point of cam (2) most distant from the center of cam shaft (1), top lever (9) and bottom lever (16), link (22) for providing levers (9) and (16) to operate synchronously and the distance between centers (3) and (10) of the axles of bearing (5) and (12) to be constant, and connecting rod (31) secured to top lever (9) at a distance from center (8) of the axle of top lever (9) to the housing. The first ends of levers (9) and (16) are secured inside the housing so that center (3) of the axle of bearings (5) in race (4) at the second end of top lever (9) and center (10) of the axle of bearings (12) in race (11) at the second end of bottom lever (16) are arranged oppositely with respect to the center of cam shaft (1) and at the main axis of mechanism when they are in the top or in the bottom position. Connecting rod (31) causes the piston to move between the top and bottom position of centers (3) and (10) of the axles of bearings (5) and (12) in levers (9) and (16).
EFFECT: enhanced efficiency.