Mounted axle disc brake. RU patent 2505442.

IPC classes for russian patent Mounted axle disc brake. RU patent 2505442. (RU 2505442):

F16D65/14 - Actuating mechanisms for brakes; Means for initiating operation at a predetermined position (brake control systems, parts thereof B60T)

F16D55/22 - by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads

B61H5/00 - Applications or arrangements of brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes (self-applying brakes B61H0011020000; combinations of different types of brakes B61H0011140000)

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Disc brake includes support of braking mechanism with brake disc. Support has the possibility of axial offset relative to brake disc and is fixed on shield of braking mechanism by means of two fasteners. Each fastener has one guide rigidly connected to shield of braking mechanism. For performing axial offset of braking mechanism support one fastener is located in sliding bearing and made in the form of floating bearing, and the other one is located in sliding bearing in the form of fixed bearing. Guide of fixed bearing along external periphery has the section which has the possibility of radial elastic deformation and against which the corresponding sliding bearing is partially borne with pretension.

FIELD: transport.

SUBSTANCE: disc brake consists of shoe body, shoe friction linings, brake disc, mechanism with two bell cranks and springs, brake air cylinder and pins of said bell cranks. Brake disc is fitted at mounted axle of transport facility. Disc brake comprises friction discs arranged at both sides of friction disc that make, along with shoe friction linings, at least three surfaces of friction. Inner friction discs are composed of segments secured at body axle. Outer friction discs are composed of segment rings secured at brake disc axles with straps coupling said segments by screws. Friction discs comprises extra springs fitted at axles to make clearance over friction surface.

EFFECT: higher efficiency of braking, decreased sizes, simplified design, expanded operating performances.

2 dwg

The invention relates to the field of railway transport, namely to the brake equipment for rail vehicles, in particular to the disc brakes.

A device disk brake of a rail vehicle, consisting of housing, located on frame rail vehicle with tick- mechanism, brake pads and friction linings, clamping device also contains the suspension of the brake cylinder on the body of the clamping device with the freedom of rotational motion, made in the form of pendulum suspension on the horizontal axis parallel to the plane of rotation of the brake disc, intermediate mechanism consisting of two rotating rollers, United with the rod brake cylinder through jumper-leads and two earrings swinging through eccentrically drilled holes rollers are articulated to the axis connecting the middle points of the levers of tick parallelogram mechanism and are the fulcrum of the levers long shoulders articulated joints with gap in brake pads and brake blocks, tick parallelogram the mechanism formed between the body, shoulders levers of tick mechanism, racks brake blocks and rods in their tops, sealed swivel axes (EN, useful model №108384, cl. B61H 5/00, publ. 2011).

Disadvantages of the invention are:

- the complexity of the design due to the large number of additional mechanisms - an interim arrangement with two rotating platens, leashes, clearance and other, which reduces the reliability in operation;

- to implement the required braking parameters increased the size of the device, increased diameter of the brake cylinder, which makes it difficult to use in the dimensions of the undercarriage.

Known disc brake the vehicle rolling stock of Railways, adopted as a prototype and consisting of the hull, shoes, friction linings (Bashmakov) and brake disc, the building is located in vehicle chassis with tick- mechanism (with two levers), the brake disc is situated on the wheel pair axle of the vehicle, suspension brake (pneumatic cylinder gunzip) cylinder mounted on the brakes with the possibility of translational-rotational motion and is designed with four elements, stud, rod and spring (compression boots) connected to the body and the brake cylinder swivel axes, the sliding caliper is designed as a framework of two plates, two racks, two axes and four springs and has the possibility of moving along the guide holes of the hull of the disk brake through the holes caliper are articulating axis, connecting it to the levers of tick parallelogram mechanism and are the fulcrum of levers, tick-borne parallel linkage established a movable carriage, short shoulders levers of tick parallelogram mechanism, rockers and rods and their tops sealed swivel axes, each beam screw secures the U-shaped plate like a spring that elastic ends relies on the appropriate Shoe (RU, patent no 2390449, cl. B61H 5/00, publ. 2010).

Disadvantages of disk brakes are:

- presence of tick parallelogram mechanism increases the transverse dimensions of the brakes, which complicates its use in the running of small-sized trucks and narrows the technical capabilities of the disk brake;

- a large number of elements of a design (springs, parallelogram mechanism) complicates the design of the disk brake;

- design of brake pads provides increased efforts braking, such as driving at high speed, which increases the braking distance and reduces the efficiency of the disk brake.

The technical result of the invention is to increase the efficiency of the braking process, reduction in size of the brakes, the simplification of the construction and expansion of technical opportunities of the brake.

This technical result is achieved by the fact that the disc brake wheel pair, consisting of a housing Bashmakov, friction linings for shoes and brake disc mounted on the wheel pair axle of the vehicle mechanism with two levers and springs, brake cylinder, swivel axis for fixing levers; disk brake includes at least two of the friction disk located at both ends of the brake disc, forming with friction lining Bashmakov, at least three of the friction surface, internal friction discs are made in the form of the segments, fixed on the axis of the body, and the external friction discs are made in the form of rings of segments, fixed on axes, brake disc with lining, connecting segments screws, friction discs contain additional coil installed on the axes for the education gap surfaces of friction.

Figure 1 shows a front view of the disk brake wheel pair along its axis), and figure 2 - section A-A in figure 1.

Disc brake wheel pair, consisting of a housing 1 (Fig 1 and 2), Bashmakov 2, friction linings 3 Bashmakov 2 and brake disc 4, assigned to the wheel pair axle of the vehicle mechanism with two levers 5 and springs 6, brake cylinder 7, swivel axes 8 for fixing levers 5; disk brake includes at least two, friction disc 9 and 10 are located at both ends of the brake disc 4, forming with friction lining 3 Bashmakov 2, at least three of friction surface of 11, 12 and 13 internal friction disks 9 are in the form of segments 14, fixed on the axis of the 15 case 1, and the external friction discs, 10 are in the form of rings of 16 segments, fixed on the axes 17 brake disc with 4 plates 18 linking segments 16 screws 19, friction discs, 9 and 10 provide additional spring 20, installed on the axes of 15 and 17 for the education gap surfaces of friction 11, 12 and 13.

Disc brake wheel pair works as follows. When the signal about the need braking power cavity brake cylinder 7 is connected with a supply of air, spring 6 and 20 compressed and two arms of the levers 5 rotate around the hinge axis 8, shoes 2 with friction lining 3 approach to frictional disks 9 and 10 on the value of L, which, interacting surfaces of friction 11, 12 and 13 with the brake disc 4, create a braking torque of friction, which through the axis of 15 and 17 is transmitted to the brake disc 4, the process of inhibition. In the process of movement of the vehicle air pressure in pneumatic cylinder 7 reset and springs 6 and 20 is the diversion of the disks 9 and 10 and education gap surfaces of friction 11, 12 and 13. The presence of three of the friction surfaces 11, 12 and 13 on each side of the brake disc 4 increases friction torque and may decrease the dimensions of brakes, simplified design, correspondingly reduced mass of the mechanisms of the clamping device disk brake and the expansion of technical opportunities of the brake through the use of a variety of mechanisms.

Disc brake wheel pair, consisting from the case of shoes, friction linings for shoes and brake disc mounted on the wheel pair axle of the vehicle mechanism with two levers and springs, brake cylinder, swivel axis for fixing levers, wherein the disc brake includes at least two, friction disk, located at both ends of the brake disc, forming with friction lining Bashmakov, at least three of the friction surface, internal friction discs are made in the form of the segments, fixed on the axis of the body, and the external friction discs are made in the form of rings of segments, fixed on axes, brake disc with lining, connecting segments screws, friction discs contain additional coil installed on the axes for the education gap surfaces of friction.