UA76531C2 - Brake of main passenger railroad car - Google Patents

Abstract

A brake of main passenger railroad car contains a main brake conduit and a supply main with connecting inter-car sleeves and end valves, an air distributor, discharging from main brake and supply mains conduits, a pressure relay, a choke and a check valve, a disconnecting two-way cock and brake cylinders with valves against slipping. For increasing the operating speed of brake the brake system additionally contains a conduit and disconnecting three-way cock. In this case, additional conduit connects discharge pipes from the main brake conduit to the air distributor and from supply main to the feeding tank. Disconnecting three-way cock is mounted at junction of additional conduit with the drain pipe from supply main.

Description

Description of the invention

The invention relates to the field of railway rolling stock, namely, to the brakes of mainline passenger 2 cars for high speeds of movement, equipped with an anti-seize device.

The anti-seizure device is used for quick release of the brake when the wheel grip is broken and for quick braking when the wheels return to normal rotation.

The known brake of a passenger car with an anti-seize device, see "UDK 629.4.077-592-52(075.8)

Inozemtsev V.G., Kazarynov V.M., Yasentsev V.F. Automatic brakes." Textbook for universities of railway 70 transport. M. Transport, 1981, 464 pages, figure 1.14 - Scheme of brake equipment of a passenger car with an anti-seize device and description on pages 72-73).

The scheme is characterized by the presence of the main brake line, which serves both to control the braking processes and to create a reserve of compressed air on each car of the train for braking by filling the reserve tanks of the cars from the locomotive tank through the driver's crane. 12 Such a brake scheme, which requires increased consumption of compressed air when performing frequent braking with the inclusion of anti-use devices, reduces the speed of the brake.

The brake of a passenger car with an anti-seize device is also known, adopted as a (prototype, see

TA28143/71 EM Kem 0010.2002 "Vavzisvo oi VgaKe Tesppoiodu", Kpogt - Vgetve Zresia! And Irgagu, Mipsnep, fig. 2.2 - 141 This brake includes the main brake and supply (main air tank of the locomotive) lines with connecting inter-car hoses and end valves, compressed air is supplied from the main air tank of the locomotive directly or through the driver's tap, an air distributor, outlet pipelines from the main brake and supply lines, pressure switch, throttle and non-return valve, disconnecting two-way valve, brake cylinders with anti-slip valves.

In this brake, in order to increase its speed, a separate supply line (MR) was introduced in addition to the main brake (BP), which is filled from the main air tank of the locomotive, bypassing the driver's crane, and replenishes the supply of compressed air in the tanks of the cars almost without any obstacles.

However, wagons with such a braking system cannot be used in a passenger train composed of wagons that do not have a supply line.

The task of the present invention is to preserve the advantages of the prototype and provide an additional possibility - the use of a car with two main lines, if necessary, the inclusion of a car with such a brake in the composition of a passenger train, in which there are cars without a supply line.

The technical result of the solution to the problem is achieved by ensuring that the supply reservoir is charged both from the supply main and from the main brake separately. Gee)

For this purpose, in the proposed brake, the pipeline leading from the main brake line to the air distributor 3o is connected to the lead pipeline from the supply line to the supply tank in an additional pipeline, while a disconnecting three-way valve is installed at the junction of these pipelines.

One of the positions of the handle of the specified faucet provides for the possibility of replenishing the volume of the supply tank through a throttle and a non-return valve from the supply line. At the same time, the Z 70 supply line is fed with compressed air directly from the locomotive's main air tank. c If there is no possibility of connecting the supply line of the car with the locomotive (the presence of cars in the train that are not equipped with a supply line), the handle of the disconnecting three-way valve is set in another position and the supply tank is connected to the main brake line also through a throttle and a non-return valve, at the same time, the main brake line is supplied with compressed air from the main air tank of the locomotive through the driver's crane. and Switching from one supply tank compressed air supply system to another

Gee! is carried out by turning the handle of the disconnecting three-way valve.

The essence of the invention is explained in Fig., which shows the schematic diagram of the proposed brake. i-th This diagram shows two car brake lines - the main brake line 1 and the supply line 2, which at 20 end with connecting intercar sleeves З and end taps 4. The tee of the brake line 5 is connected to the air distributor through the disconnecting two-way tap 6 7; the latter has an output to the pressure switch tya 10.

The air distributor 7 also has an outlet to the compensating tank 9 and the reserve tank 8.

The pressure switch 10 is connected to the brake cylinders 15-22 through the anti-slip valves 23 and to the supply 29 reservoir 14.

GF) From the tee 5 through the outlet pipeline 25 and the open disconnecting two-way valve b, compressed air from the locomotive is supplied through the driver's valve to the air distributor 7 and through it to the reserve tank 8. When controlling the braking processes, air can be supplied by the air distributor 7 to the compensating tank 9 and to the pressure switch 10. At the same time, in the presence and supply of compressed air in the supply line 2 60, air from it through the tee 11, outlet pipe 12, throttle 13 and check valve 24 enters the supply tank 14 and from it to the pressure switch 10.

When the air distributor 7 is activated "for braking", the compressed air flows from it to the pressure switch 10, while the air from the supply tank 14 flows into the brake cylinders 15-22. When releasing, the air from the brake cylinders is released into the atmosphere through the anti-slip valves 23. because at the same time, the speed of the brake and its "inexhaustibility" during frequent braking with the use of anti-use devices are ensured.

If a passenger car with the proposed brake is included in the train, which includes cars without a supply line 2, the handle of the disconnecting three-way valve 26, mounted on an additional pipeline 27, is set to the position in which the main brake line 1 is connected to the supply tank 14 through the throttle 13 and check valve 24, while the supply line 2 is disconnected from the additional pipeline 27.

In this way, the performance of the brake is preserved even in this situation.

The specified technical brake solution was implemented on 7/0 experimental passenger cars manufactured by Kryukiv Carriage Works, OJSC, equipped with an anti-seize device, and which are tested in operational conditions.

Claims (1)

The formula of the invention , , The brake of a main passenger car equipped with an anti-seize device, which contains the main braking and supply (main air tank of the locomotive) main lines with connecting inter-car sleeves and end valves, the supply of compressed air of which is carried out from the main air tank of the locomotive directly or through a crane driver, air distributor, branch pipelines from the main brake and supply lines, pressure switch, throttle and non-return valve, disconnecting two-way valve and brake cylinders with anti-skid valves, which is distinguished by the fact that an additional pipeline and a disconnecting three-way valve are introduced into the brake system , while the additional pipeline connects the outlet pipelines from the main brake line to the air distributor and from the supply line to the supply tank, and the disconnecting three-way valve is installed at the point of connection of the additional pipeline du with a branch pipeline from the supply main. "- (ze) IF) (Se) and - - and? -i (o) 1 (95) - name) 60 b5