CS241906B1 - Disc brake with increased lining life - Google Patents

Abstract

The purpose of the invention is a disc brake with increased lining life, satisfying increased demands for improved properties of closed disc brakes, which are increasingly used either in a dry space or in a space filled with oil in commercial vehicles, especially tractors. The essence of the invention lies in the fact that a pin connecting both rods with the control rod is located as close as possible to the center of the disc brake in the basic position of the disc brake. The forks of the control rod and parts of the rods are located in the recess of the pressure discs. The cone of the pressure discs is so large that the recess does not disturb the internal friction surfaces of these pressure discs. The pressure discs are designed so that, due to the thermal load of the disc brake, the weight of the pressure discs is as large as possible.

Description

(54)

Disc brake with increased lining life

The purpose of the invention is to provide a disc brake with an increased lining life satisfying the increased demands on the performance of a closed-type disc brake, increasingly used either in dry or oil-filled areas for commercial vehicles, especially tractors. SUMMARY OF THE INVENTION The object of the invention is that a pin connecting the two linkages to the control linkage is located as close as possible to the center of the disc brake in the basic position of the disc brake. The control linkage forks and linkage sections are located in the recesses of the push discs. The width of the press disks is such that the recess does not interfere with the internal frictional surfaces of the press disks. The discs are designed to maximize the weight of the discs due to the thermal load on the disc brake.

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J5 JI

241,906 - 1 -

241 906

SUMMARY OF THE INVENTION The present invention relates to a disc brake having an increased lining life, satisfying the increased demands for improving the performance of a closed type disc brake, increasingly used either in a dry or oil-filled area in commercial vehicles, especially tractors.

Nowadays, disc brakes of both open and closed type are increasingly being used, depending on the type of vehicle and the method of construction. Each of these species has certain advantages and disadvantages. In commercial vehicles and especially tractors, disc brakes of the closed type, located in a dry or oil-filled area, are increasingly used. Disc brakes of the closed type have the disadvantage that a relatively complicated disassembly and assembly is required to replace the brake linings. For this reason, increasing the life of the lining is very significant. In connection with fuel economy, there is a tendency in the world to increase the maximum speed of tractors to 30 km / h, in some countries up to 40 km / h. Tractor weights are also constantly increasing. This, of course, results in increased demands on the tractor brakes, in particular on their thermal load and the service life of the friction linings.

The above-mentioned disadvantages are overcome by the disc brake with increased lining life according to the invention. SUMMARY OF THE INVENTION The object of the invention is that a pin connecting the two linkages to the control linkage is located as close as possible to the center of the disc brake in the basic position of the disc brake. The control linkage forks and linkage sections are located in the recesses of the push discs. The width of the press disks is such that the recess does not interfere with the internal friction surfaces of these

- 2 241 906 pusher disks. The discs are designed to maximize the weight of the discs due to the thermal load on the disc brake.

The advantages of the disc brake with an increased lining life according to the invention are that they provide a significantly higher operating stroke of the discs while reducing the actuating force, and thus provide a longer service life of the disc brake lining. At the same time, a substantial increase in the weight of the discs contributes to a lowering of the temperatures in the friction surfaces of the discs.

FIG. 1 shows a sectional view of a disc brake having an increased lining life according to the invention, wherein FIG.

Lining plates 2 with axial displacements are axially displaceably mounted on the shaft 1 of the differential drive shaft. The actual disc brake 3 of conventional construction is located between the slats 2 with lining. On the opposite side, the slats 2 are lined against the right-hand lid 6 and the left-hand lid included in the housing, the disc brake 6 consisting of thrust discs 6, balls X in the tapered recesses of the return springs 8, rods 10, control rod 10, pin 11 with the cotter pin 12, the bolts 13 and the nuts 14 «The press disks 6 are poor in the space at the fork 15 of the control rod ^ which are not recessed 16. which makes it possible to locate the pin 11 as close as possible to the center 17 of the disc brake 2. the surfaces 18 of the pressure disks 6 and the outer friction surfaces 19 of the right-hand cover 6 and the left-hand cover

Claims (3)

SUBJECT OF THE INVENTION 241 906 A disc brake having an increased lining life, characterized in that, as close as possible to the center (17) of the disc brake (3), a pin (11) connecting the rods (9) to the control rod (10) is located in the basic position of the disc brake (3). ), the forks (15) and the closest parts of the rods (9) being located in the recess (16) of the press disks (6). 2. A disc brake having an increased lining life according to claim 1, characterized in that the width of the press disks (6) is so large that the recess (16) does not interfere with the inner friction surfaces (18) of the press disks (6). 3. A disc brake having an increased lining life according to items 1 and 2, characterized in that the thrust discs (6) are constructed so that their weight is as high as possible due to the thermal load on the disc brake (3).