SU1333910A1 - Disk/shoe brake - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in disc braking devices. The aim of the invention is to increase the reliability of the drive by providing self-boosting and wear compensation. The goal is achieved by carrying out external threads in mutually opposite directions and internal threads of the same direction on the collars 2 and 3. The external threads mate with the threads in case 1. The pads 8 and 9 with threaded rods 6 and 7 are screwed into sleeves 2 and 3, the threaded rods 7 and 8 are connected to the case 1 by means of ratchets. On the sleeves 2 and 3 there are gears 13 and 14, which engage with the pinion shaft 15. The pinion shaft 15 is connected to the drive mechanism. The brake disc 12 is mounted on the splines of the shaft 19 movably. When the brake is activated, self-reinforcement is achieved, as well as automatic compensation and uniform wear of the pads 5, regardless of the direction of rotation of the disc. 3 il. FIG. 2 13 OE about SA; with

Description

The invention relates to power engineering and can be utilized in braking devices.

The purpose of the invention is to improve performance by providing self-boosting.

FIG. 1 shows the proposed brake, general view; in fig. 2 is also a top view in FIG. 3 shows section A-A in FIG. 2

The disc-block brake contains the body 1 of the brake, in which the sleeves 2 and 3 and the actuator 4 with the driving lever 5 are mounted on the external thread. In the sleeves 2 and 3, the brake pads 8 and 9 are mounted on the internal thread with their threaded rods 6 and 7 with friction linings 10 and 11 and the brake disc 12. The threads in the cages 2 and 3 are made in opposite directions, and the directions of the external and internal threads

on each holder 2 and 3 are the same.

The sleeves 2 and 3 are equipped with a gear cola

13 and 14 themselves interacting with gear shaft 15. Brake pads 8 and 9 have rotational direction stops — ratchet wheels 16, which pawls 17 are hinged on the brake casing 1 and are pressed by springs 18. Brake pads 10 and 11 comes into contact with the brake disc 12, a ram with a lever, kinematically coupled with clips, and ratchet furs. the bottoms, whose wheels are connected to the threaded rods, and the dogs

housing

distinguished on splines 19. A gear shaft 35 which fits with threaded rods, 15 is connected to a drive 4 by a lever 5.

The brake works as follows.

When the brake is closed, the gain from the actuator 4 through the lever 5 rotates the gear shaft 15, the gears 13 40 and 14 and the sleeves 2 and 3, with the result that the sleeves 2 and 3 are pushed towards the disc 12 along with the brake pads 8 and 9, friction linings 10 and 11, which are in contact with the disk 45 12. In this case, due to the difference in peripheral speeds on the outer and inner friction radii between the disk 12 and the pads 10 and 11, a torque of 50 occurs and the pads 2 and 3 rotate.

put in

Sch and with the fact that, in order to increase the reliability in the work by means of the self-reinforcement of the liver and wear compensation, the cages are made of external threads of the same direction with internal threads, in the case there are threaded holes that are compatible with external threads; ; a, made in the form of a toothed scaffold connected to the yokes, and a gear shaft connected to the lever and open wheels.

One of the pads 3 and 2 is pushed towards the disk 12, the other must be moved from the disk 12 under the influence of torque, but to avoid this, ratchet wheels 16 and pawls 17 are provided, which allow brake pads 2 and 3 to rotate in opposite directions

so that during the rotation the pads 2 and 3 were pressed against the disk 12. When the brake disk 12 was rotated towards the side ,-. One block 2 or 3 is expected. The magnitude of the advancement is determined by the magnitude

the wear of both pads 10 and 11, and the pressure to press the brake pads 2 and 3 to the disk 12 is proportional to the rotation speed of the brake disk 12.

20 By rotating the disk 12 in the opposite direction, another block 2 or 3 is advanced.

Brake open

Formula of invention

Disk-block; brake, containing body, brake disc, brake pads with threaded rods located on both sides of the disc, clips with internal threads of the opposite direction, gear with lever, kinematically connected with clips, and ratchet bellows, wheels which are connected to the threaded rods, and the dogs retractable to the threaded rods,

housing

distinguished in

Shch and so that, in order to increase reliability in operation by providing self-reinforcement and wear compensation, external threads of the same direction with internal threads are made on the cages, threaded holes matching the external threads are made in the case; A is made in the form of gears connected to the yoke and a pinion shaft connected to the lever and the gears.

one

/five

Editor M. Dylyn

Compiled by I. Lukin

Tehred M.Didk Corrector G, Shekmar

Order 3943/34 Circulation 811 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

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

Claims (1)

Claim Disc-pad 'Brake, comprising a housing, a brake disc, brake pads located on both sides of the disc with threaded rods, cages with internal threads of the opposite direction, mating with threaded rods, a drive with a lever kinematically connected to the cages, and ratchet mechanisms, wheels which are connected to threaded rods, and the dogs are installed in the housing, revealing that, in order to increase reliability in work by providing self-reinforcement and compensation for wear, the clips are made external threading the same direction with the internal threads in the housing formed threaded holes, mating with the external threads, wherein the actuator is in the form of gears, 'connected to the yokes, and valashesterni associated with the lever and zubsya. chat wheels. Figure 1 Aa Fig.Z