SU1254223A1 - Disk-brake - Google Patents

Description

The invention relates to a transport engineering, in particular to tick-type brake mechanisms with axially movable brake pads pressed against an axially non-responsive rotating brake disc.

The aim of the invention is to reduce the labor intensity of manufacture by reducing the number of springs and elements fixing the pads and bracket.

The use of a lug pin that passes through the turns of the torsion springs and installed in the hydraulic cylinder body provides for a convenient replacement of the brake pads while reducing the labor intensity of manufacturing the disc brake.

FIG. 1 shows a wild brake, view from the side of the edge of the brake disc; in fig. 2 shows section A-A in FIG. one; in fig. 3 - section BB. FIG. 2

The disk brake contains a brake disk 1, outer and inner brake pads 2 and 3 with friction linings fixed on the plates 4 and 5, a support 6 with a finger 7 fixed on it, on which a clip 8 is mounted with the possibility of rotation and longitudinal movement along its axis hydraulic cylinders 9, in which pistons are located opposite the rear side of the inner brake pad 3. On the caliper 6, the stops 10 for the inner ring 3 and the stops 11 for the outer block 2 are mounted. The brake blocks 2 and 3 are spring-loaded with torsion springs 12 and 13 with turns 14 and 15 respectively. Inside the turns 14 and 15 of both springs there is a 1.6, which the

15

20

As the pressure rises, the pistons slide out of the cylinders 9 torus mosaic and press the inner pad 3, moving it along the caliper 6 to the brake disc 1. In this case, the spring 13 with the inner surface of the coil 15 slides on the pin 16, and the body 17 of the cylinders 9 slides on the finger 7, moving the bracket 8 with the outer pad 2 fixed on it to the opposite side of the brake disc 1. After contact with the brake disc 1, the pads are carried along with it. Due to the presence of force, friction between the plate 5 of the inner pad 3 and the ends of the pistons located in the hydraulic cylinders 9, as well as between the plate 4 of the outer pad 2 and the adjacent surfaces of the bracket 8 and the protrusion 23, the housing 17 of the hydraulic cylinders 9 with the bracket 8 follows blocks 2 and 3, turning around the finger 7. Then the external block 3, with its edge, touches one of the stops 115 turns with support on it, moves relative to the protrusion 23 and overcomes the force of the spring 12 hooked to it The surface of its plate 4 on the supports 11 of the caliper 6. The inner block 3, following the brake disc 1, also rests against the entire supporting surface on its stops 10. From the moment of installation of the pads 2 and 3, the braking mode starts on the corresponding stops of the caliper 6. The springs 12 and 13 of the pads 2 and 3, when installed in the brake, are twisted at a certain angle and, as a result, their KOHiy i 18 pressure on the areas of the projections 20 of the plates 4 and 5 of the pads, and the inner surfaces

25

thirty

35

40

installed in the housing 17 gvdravlichesko- - turns 14 and 15 of the springs 12 and 13 of the cylinder Nago. The ends 18 of the springs 12 and 13 press on the pin 16 of the body of the hydraulic; each block is made of curved cylinders 9. Thanks to this, meet each other in a box); e hooks 19 hooked to the projections 20 on

the inner block 3 is pressed against the caliper 6, the outer block 2 is pressed to

each block. In the outer block 2, on the th side, there is a blind hole 21, in which with a gap 22 a protrusion 23 is installed, made on the bracket 8. Projections 20, with which hooks 19 npjTsnn 12 and 13 are hooked, are angled to the support ends of the 24 shoes 2 and 3. At the ends of the pin 16, there are 2.5 cotter pins,

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R

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20

4223

Disc brake works as follows.

As the pressure rises, the pistons slide out of the cylinders 9 torus mosaic and press the inner pad 3, moving it along the caliper 6 to the brake disc 1. In this case, the spring 13 with the inner surface of the coil 15 slides on the pin 16, and the body 17 of the cylinders 9 slides on the finger 7, moving the bracket 8 with the outer pad 2 fixed on it to the opposite side of the brake disc 1. After contact with the brake disc 1, the pads are carried along with it. Due to the presence of force, friction between the plate 5 of the inner pad 3 and the ends of the pistons located in the hydraulic cylinders 9, as well as between the plate 4 of the outer pad 2 and the adjacent surfaces of the bracket 8 and the protrusion 23, the housing 17 of the hydraulic cylinders 9 with the bracket 8 follows blocks 2 and 3, turning around the finger 7. Then the external block 3, with its edge, touches one of the stops 115 turns with support on it, moves relative to the protrusion 23 and overcomes the force of the spring 12 hooked to it The surface of its plate 4 on the supports 11 of the caliper 6. The inner block 3, following the brake disc 1, also rests against the entire supporting surface on its stops 10. From the moment of installation of the pads 2 and 3, the braking mode starts on the corresponding stops of the caliper 6. The springs 12 and 13 of the pads 2 and 3, when installed in the brake, are twisted at a certain angle and, as a result, their KOHiy i 18 pressure on the areas of the projections 20 of the plates 4 and 5 of the pads, and the inner surfaces

25

thirty

35

40

turns 14 and 15 of the springs 12 and 13 press the pin 16 of the housing of the hydraulic cylinders 9. Thanks to this

the inner block 3 is pressed against the caliper 6, the outer block 2 is pressed to

50

. The protrusion 23 of the bracket 8, and the case 17 of the hydraulic cylinders 9 - towards the guide pin 7, as a result of which the vibrations of the pads 2 and 3 are prevented. At the same time, there is a minimum of 55 pivots of the brake discs 2 and 3 of the brake disc. and the pipe is not increased by an unacceptable amount

for braking, the volume of fluid to be applied to the cylinders 9 of the brake. The forces of inertia arising from the movement of the wheel axle on which the brake caliper 6 is fixed, tend to change the position of the sliding relative to the caliper 6 of the housing 17 of the hydraulic cylinders 9 with the clamp 8, the effect of these forces in the absence of pressure in the brake system the housing 17 of the hydraulic cylinders 9 rotates around the finger 7, while the pin 16 presses against the inner surface of the coil 15 of the spring 13 which is mated to it

pads 3 and twists it, shifting along the coil 15. On reaching the position, when the normal to the mating surfaces of the pin 16 and the inner surface of coil 15 of the spring 13 passes through the junction point of its hook 19 and the portion of the protrusion 20 of the pad 3, from which the pin 16 is removed, and the pad 3 abuts against its stops 10, the housing 17 of the hydraulic cylinders 9 with the clamp 8 stops. When turning to the other side, the 16 parts symmetrical with respect to the pin, the brakes interact in a similar way.

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125A223

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Fig.d

Editor A. Lezhnin

Compiled by V. Reveko

Tehred A. Kravchuk Proofreader M, Pojo

Order 4703/40 Circulation 880 Subscription

VNIIPI USSR State Committee

on the subject of inventions and discoveries 11-3035, Moscow, Zh-35, Raushsk iab., d. 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (2)

1. DISK BRAKES containing a brake disk, external and internal brake pads with protrusions and supporting ends, a caliper with a finger and with stops located between the internal brake pad and the axis of the brake disk, hydraulic cylinders with a housing and pistons located opposite the rear side of the internal brake brake pads, and with a bracket mounted on the finger with the possibility of rotation and movement along its axis, as well as torsion springs installed between the brake pads and the bracket, characterized in that, in order to reduce labor the production container, it is equipped with a pin, a blind hole is made on the back side of the external brake ring, a protrusion is made on the bracket, the ends of each torsion spring are bent towards each other with the formation of hooks, the pin is placed inside the torsion spring coils and installed in the hydraulic cylinder housing, the caliper protrusion is located with a gap in the blind hole, and the hooks of the torsion springs are engaged with the protrusions of the brake pads. 2. The brake according to claim 1, characterized in that the sections of the protrusions of the brake pads with which the hooks of the torsion springs are coupled are located at an angle to the supporting ends of the pads. SU .... 1254223 A1