RU79850U1 - STAND FOR DIAGNOSTIC AND TEST OF ELEMENTS OF THE BRAKE SYSTEM OF THE RAILWAY PASSENGER CAR - Google Patents

Abstract

The utility model relates to railway transport, in particular, to the equipment of a car depot, intended for the diagnosis and testing of brake equipment of railway passenger cars. The essence of the meter: the stand is equipped with a filter connected to the pneumatic system with an air pressure regulator, an air pressure meter, a shut-off valve connected to the filter inlet and a pneumatic-electric relay connected through the collector to the filter output, the power cylinder through one collector is connected to a pneumatic-electric relay through a collector, and the other cavity is connected to the filter through a distributor with electro-pneumatic control and said manifold, to which a pneumatic system is connected via a valve and manifold, consisting of at least two sections connected in series through a reinforcing valve, each of which contains a pressure measuring sensor with a reservoir of compressed air, an air pressure meter, a drain cock and a manifold, while both sections of the pneumatic system have fittings for connecting a reset three-position valve, and one of the sections through the manifold and the valve with silencer is additionally connected with the atmosphere. 1 p. Fs, 2 figs. ill.

Description

The utility model relates to railway transport, in particular, to the equipment of a car depot, intended for the diagnosis and testing of brake equipment of railway passenger cars.

A well-known stand for the diagnosis and testing of railway rolling stock, mainly wheel pairs of motor and trailed electric train cars, containing a frame with a tool tray for placing a wheel pair, a drive for rotating a pair of wheels, a hydraulic system and a remote control (see, for example, RF patent No. 2264938, cl B60S 5/00, published on November 27, 2005).

However, this design of the stand is intended for repair of wheel-motor blocks of locomotives and has not found its application for the diagnosis and testing of brake components of railway passenger cars.

The closest known for its technical essence and the achieved result is a stand selected as a prototype for diagnostics and testing of brake elements of a railway passenger carriage, containing a frame with a compressed air source mounted with the possibility of creating a working load on the elements of a pneumatic brake system equipped with a microprocessor and pneumatic clamp, made in the form of a power cylinder connected to a source of compressed air intended for erednogo connection to the pneumatic system and simulating creation workload resetting brake system valve, instrumentation and control panel connected to the microprocessor to switch the operation modes and implementation of diagnostic tests and braking elements

system according to a given program (see, for example, the description of the patent of the Russian Federation for utility model No. 73294, class B61F 99/00, G01M 3/06, publ. 05.20.2007).

However, this design of the stand is intended for the diagnosis and testing of individual elements of the brake system and also has not found its application for the diagnosis and testing of the resetting three-position valve.

The essence of the claimed utility model is expressed in the aggregate of essential features sufficient to achieve the technical result provided by the proposed utility model, which is expressed in ensuring unification by providing diagnostics and testing the resetting three-position valve of the brake system of a railway passenger carriage at one working position without increasing production areas.

The specified technical result is achieved by the fact that the stand for diagnostics and testing of the brake system elements of a railway passenger car, mainly a relief valve, comprising a frame with a compressed air source mounted with the possibility of creating a working load on the elements of the pneumatic brake system, equipped with a microprocessor and pneumatic clamp made in in the form of a power cylinder connected to a source of compressed air intended for alternating connection to a pneumatic system him and imitating the creation of a working load on the brake valve relief valve, instrumentation and control panel connected to the microprocessor with the ability to switch operating modes and diagnose and test the brake system elements according to a given program, equipped with a filter with an air pressure regulator connected to the pneumatic system, air pressure meter, shut-off valve connected to the input of the filter and pneumo-electric relay connected through the collector to the output of the fil three, the power cylinder is connected through one collector to a pneumatic-electric relay through a collector, and the filter is connected to the filter through a distributor with electro-pneumatic control and the above collector through another

to which a pneumatic system is connected through a valve and a manifold, consisting of at least two sections connected in series through a valve, each of which contains a pressure sensor with a reservoir of compressed air, an air pressure meter, a drain valve and a manifold, In this case, both sections of the pneumatic system have fittings for connecting a relief valve, and one of the sections is additionally connected to the atmosphere through a manifold and a valve with a silencer.

The claimed combination of essential features is in direct causal relation to the achieved result.

Comparison of the claimed technical solution with the prototype made it possible to establish compliance with its criterion of "novelty", since it is not known from the prior art.

The proposed device is industrially applicable, because it can be implemented by existing technical means and meets the established conditions of patentability of a utility model.

The other known technical solutions for a similar purpose with similar significant features by the applicant was not found.

Figure 1 presents the stand for diagnosis and testing of the brake system of railway rolling stock, mainly dropping a three-position crane, a General view, figure 2 is a pneumatic diagram of the stand.

The stand for diagnostics and testing of the brake system elements of a railway passenger car, mainly a three-position valve that relieves, consists of the following functional parts:

- frame made in the form of a welded structure;

- pneumatic clamp with pneumatic actuator made in the form of a power cylinder;

- pneumatic system of the stand;

- control and indication system;

- measurement system.

The walls of the frame, inside which the units and pipelines of the pneumatic system of the stand are mounted, as well as the clamping device of the test unit, are closed with metal panels and doors.

A shut-off valve with a fitting for supplying compressed air from the pneumatic system of the workshop is installed on the left side of the stand.

On the front panel of the stand are:

- a clamping device in the form of a pneumatic clamp;

- pneumatic toggle switch (distributor) control clamping device;

On the inclined panel of the stand are:

- manometers for visual control of pressure in the pneumatic system;

- bench control switches and indicators of operating modes.

An electrical cabinet is installed on the rear side of the stand, in which the devices of the electrical system for controlling the stand, as well as controllers and test automation devices (not shown), are placed.

The control equipment includes six switches: "Reset", "Filling" on the left side of the panel, and "Valve", "Pressure 3.5 kgf / cm ² ", "Pressure 4 ÷ 5 kgf / cm ² ", "Reset" on the right side of the panel, as well as two buttons "Reset" and "Start" on the left panel. Each switch has three positions: Auto, On, and Off. The terms “On” and “Off” are combined by the general term “Manual”. In the automatic test process, the resetting three-position valves of series No. 182 and No. 182-01 shall all switches be in the “Auto” position. The “Start” button on the left side of the panel is used to start the valve testing process. The “Reset” button serves to stop and complete the test process, as well as reset the recorded parameters. The “Power” switch (Fig. 4) is used to connect the stand to power supply.

Instrumentation and signaling equipment is located on the control panel 2. Pressure gauges 5, Trunk 6 and Brake cylinder 7 show the pressure of the compressed air when manually opening the shut-off valve to the stand, the pressure of the compressed air in front of and after the test valve . The “Reset” or “Filling” signal light on the left side of the panel shows the process of automatic testing of valves No. 182 and No. 182-01. The signal lamps “Valve”, “Pressure 3.5 kgf / cm ² ”, “Pressure 4 ... 5 kgf / cm ² ” and “Reset” on the right panel turn on when the corresponding switches are turned to the “On” position (“Manual” ) The “Clip” lamp turns on when the air clip is triggered. The “Highway” lamp turns on when compressed air is supplied to the stand when manually opening the shut-off valve OK1. In the center of the right panel is a monitor with control buttons F1 ... F5, which displays the control process and test results. On the right panel there are also the “Good” and “Faulty” warning lights, which turn on at the end of the valve test and inform about the result of the valve check. The Ready lamp lights up when both the Magistral and the Clip lamps light up. The “Power” switch in the “On” position is illuminated by a yellow light.

Thus, the stand consists of a frame 1, which is a welded box, open in front, in the upper part of which there is a panel 2 of pressure gauges for controlling the pneumatic system and indications with control and switching elements, a pneumatic clamp 3 made in the form of a power cylinder connected to a source of compressed air (not shown), which is mounted with the possibility of creating a working load on the tested element of the pneumatic brake system, which is used as a reset three-position valve series No. 182 and 182-01, pneumatic toggle switch 4 for connecting air pressure to the stand, as well as air pressure gauges in the form of manometers 5, 6 and 7, reflecting, respectively, the air pressure in the external air line and sections of the pneumatic system of the stand: the Manometer gauge shows air pressure brought

from the external line, the pressure gauges “Tank 1” and “Tank 2” show the pressure in the tanks of each section of the pneumatic system.

At the bottom of the frame is the pneumatic equipment (not shown) needed to check the valve. A shut-off valve and an air preparation unit are installed on the right wall, a pressure amplifier in the center, two reservoirs for compressed air of 1 liter each are fixed at the bottom.

The stand also contains instrumentation, signaling equipment and control equipment.

The stand is equipped with a microprocessor (not shown) with a control panel designed to provide the ability to switch operating modes and to diagnose and test elements of the brake system according to a given program.

The stand is equipped with a filter 8 connected to the pneumatic system with an air pressure regulator, an air pressure meter, made in the form of a manometer 5, a shut-off valve 9 connected to the input of the filter 8 and a pneumatic-electric relay 10 connected through the manifold 11 to the output of the filter 8, and the power cylinder 3 is one a cavity through a collector 12 is connected to a pneumatic-electric relay 13, and another cavity is connected to a filter 8 through a distributor 14 with electro-pneumatic control, a throttle 15 and said collector 11, to which through a valve a valve 16 and a manifold 17 connected to the pneumatic system, consisting of at least two sections, connected in series through a valve 18, containing, respectively, measuring pressure sensors 19 and 20 with tanks 21 and 22 of compressed air, air pressure gauges, made in the form of manometers 6 and 7, drain valves 23 and 24 and manifolds 25 and 26, while both sections of the pneumatic system have fittings (not shown) for connecting a three-position relief valve, and one of the sections through the manifold 25 and the valve the silence unit 27 is further communicated with the atmosphere.

The work of the stand is as follows.

- supply compressed air from an external highway (workshop highway);

- install the test relief valve on the stand and fix it with a pneumatic clamp;

- supply power to the stand;

- carry out tests of a three-position relief valve;

- at the end of the tests, air is vented from the mains of the bench, the pneumatic clamp is released, the relief valve is removed from the bench and the power supply to the bench is turned off;

- shut off the compressed air supply from the workshop line.

Before starting work, inspect the stand to make sure that the pneumatic clamp is working, and if necessary, clean the filter. Turn the handle of the manual shut-off valve “Main” to supply compressed air to the stand. The Bulb “Highway” lights up. According to the gauge "Nutrient line", you must make sure that the pressure is not less than 5 ^+0.5 kgf / cm ² . By ear, it is determined whether there is an air leak. If there is a leak, establish the cause and eliminate it. Next, turn on the feeding machine of the stand by moving the "Power" switch to the "On" position. The switch backlight informs about the presence of power supply by a yellow light bulb.

The resetting three-position valve with the previously checked insulation resistance is installed on the installation site of the pneumatic clamp along the guide pins, for which it is necessary to throw the rail with a groove on the clamp axis and turn on the toggle switch. At the same time, the clamp pneumatic cylinder will work and fix the three-position valve. After actuation of the pneumatic clamp, the Ready lamp turns on. The stand is ready for the verification cycle. Further actions to check the three-position valve are possible only with the signal lights “Main”, “Clip” and “Ready”.

- carry out a leak test of the joints of the assembly units and the atmospheric valve, for which it is necessary to relieve tension from the valves of the three-position valve,

why switch the “Reset” and “Fill” toggle switches on the left panel to the “Off” position, disconnect the electrical connector from the three-position valve, turn the “Reset” toggle switch on the right panel to the “Off” position, switch the “Valve” and “Pressure 4 toggle switches 5 kgf / cm ² "on the right panel to the" On "position, while the manometers" Supply line "and" Supply line "should show a pressure value of 5 kg / cm ² .

Next, it is necessary to lather with soapy water the joints of the assembly units and the atmospheric valve. The formation of soap bubbles is not allowed.

To complete the tests, you must:

- put the “Valve” switch on the right panel to the “Off” position;

- set the “Reset” toggle switch on the right panel to the “On” position. There will be a pressure release from the lines of the stand. Control on the gauges "Highway" and "Brake cylinder";

- turn off the toggle switch. The “Ready” and “Clip” lights go out;

- Fold the clip rail clockwise to release the valve.

To remove the resetting three-position valve from the stand, you must:

- close the manual shut-off valve “Trunk”. The Nutrient Trunk light goes out.

- remove power from the stand, for which turn the “Power” switch to the “Off” position.

Checking the correct operation in manual and automatic modes is performed by a command from the controller with registration of the monitor parameters and saving them in the microprocessor RAM.

The proposed stand provides the expansion of technological capabilities due to the diagnosis and testing of the resetting three-position valve of the brake system at one processing station.

Claims (1)

A stand for diagnosing and testing the brake system elements of a railway passenger carriage, primarily a three-position valve, containing a frame with a compressed air source mounted with the possibility of creating a working load on the elements of the pneumatic brake system, equipped with a microprocessor and pneumatic clamp, made in the form of a power cylinder associated with a source of compressed air designed for alternately connecting to the pneumatic system and simulating the creation of a working load operations on the brake valve reset valve, instrumentation and control panel connected to the microprocessor with the ability to switch operating modes and diagnose and test the brake system elements according to the specified program, characterized in that the stand is equipped with a filter with an air pressure regulator connected to the pneumatic system, air pressure meter, shut-off valve connected to the filter inlet and pneumatic-electric relay connected through the collector to the filter output, si the new cylinder through one collector is connected to the pneumatic-electric relay through the manifold, and the other cavity is connected to the filter through the electropneumatically controlled distributor and said collector, to which the pneumatic system is connected via the valve and the manifold, consisting of at least two sections connected in series with each other through a valve, each of which contains a pressure measuring sensor with a reservoir of compressed air, an air pressure meter, a drain cock and a manifold, In this case, both sections of the pneumatic system have fittings for connecting a three-position reset valve, and one of the sections is additionally connected to the atmosphere through a manifold and a valve with a silencer.