Device to clean point switch from snow and ice

FIELD: construction.

SUBSTANCE: device for cleaning of a point switch from snow and ice comprises a system of nozzles with conical attachments, arranged between switch blades and frame rails of the point switch and connected by means of a supply manifold with a source of compressed air, serially connected a snow and ice sensor, installed on elements of the point switch between its switch blades, and a processing unit. The additional air manifold with help of three-way controlled valves is connected to the supply manifold on the area arranged in the close proximity to the point switch, the inlet of control of each valve is connected to the outlet of the processing unit.

EFFECT: invention makes it possible to clean a point switch depending on weather conditions, to reduce energy consumption, to increase efficiency of treatment and to increase the service life of the device itself.

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The invention relates to the field of railway automatics and telemechanics, in particular to the travel device for rolling stock management, and can be used for cleaning turnouts from snow and ice in the winter.

It is known a device for cleaning the switch that contains the dial drive motor associated with switches of the arrow, the device entry commands and the control unit switches the transfer associated with electrical interlocking devices, power supplies, analogue transfer. The device has connected in parallel to the motor switch actuator first and second additional motors connected through first and second gears with the first and second ruffs placed between the respective frame rails and the adjacent switches (EN 2004109209, B61L 27/08, 10.10.2005).

The disadvantages of the invention are complicated construction cleaning switch and low reliability in winter conditions.

As the closest analogue made a device for cleaning the switch from snow and ice, including installed on the elements of the arrows between the frame rail and wisecracking nozzle connected through the supply line to a source of compressed air, in which the treatment takes place by the flow in the spirit, going around the frame rail, the wit, and the space between them, the device is equipped with a heating element placed in the supply line in front of the nozzle and is made in the form of a solenoid core having a through channels, the geometrical axis of which is parallel to the axis of the solenoid, and in the Central channel is selected, with the possibility of moving along the axis of the solenoid, the spring loaded rod of ferromagnetic material with a conical nozzle, the top of which is oriented to the nozzle, provided with a flexible nozzle with a variable pass-section (EN 2149937, EV 7/24, 27.05.2000).

To improve the quality of cleaning switch device is further provided with heating elements placed in the supply line in front of the nozzle and is made in the form of a solenoid core having a through channels, which requires additional costs for maintenance and cost of electrical energy.

The present invention is a device to effectively clean the switch from snow and ice, using the Venturi effect.

The technical result is to reduce the cost of electricity and improving the efficiency of cleaning the switch from snow and ice.

The technical result is achieved in that the cleaning device with relojero translation from snow and ice contains nozzles with conical nozzles, located between the blades and frame rails switch and connected through a supply line to a source of compressed air connected in series sensor snow and ice, mounted on the elements of the switch between its blades, and the processing unit, as well as additional air line, which includes a Venturi nozzle, and additional air line using a three-way adjustable valve connected to the supply line at the site, located in close proximity to the switch, the input of each control valve is connected to the output of the processing unit.

The essence of the proposed technical solution is illustrated by a drawing, which shows a structural diagram of a device for cleaning switch from snow and ice.

A device for cleaning the switch from snow and ice contains a nozzle 1 with conical nozzles located between the blades 2 and frame rails 3 switch and connected through the supply line 4 with a source of compressed air (not shown), and connected in series sensor 5 snow and ice, mounted on the elements of the switch between its blades 2 near one of them, and block 6 processing, as well as additional air mA is astral 7, which includes the nozzle 8 Venturi. Narrowing the end of the nozzle 8 Venturi pointing towards the switch.

Additional air line 7 with three-way adjustable valves 9 and 10 are connected to the supply line 4 at the site, located in close proximity to the switch. The input of each control valve 9(10) connected to the output unit 6 processing.

The device operates as follows.

The sensor 5 snow and ice, mounted on the elements of the switch between its blades 2, measures the temperature and humidity. At low temperatures and in contact with the snow (moisture) on the sensor 6 outputs its signal corresponding to the presence of snow on the elements of the switch. Unit 6 processing analyzes the output signal from the sensor 5 ice and snow. Under conditions corresponding to the presence of snow on the elements of the switch with a density of not more than specified value, unit 6 generates a control signal and sends it to the input of the control valves 9 and 10 for their transfer to the position at which the air supply system is connected to the nozzle 1 directly through the supply line 4. Thus directed into the space between the blades 2 and frame rails 3 the flow of compressed air cleans the snow from the switch.</>

If the block 6 of the processing result of the analysis of the output signal from the sensor 5 of the ice and snow has determined that the results of measurement of temperature and humidity correspond to the increase in turnout translation density of snow, it generates a corresponding signal and sends it to the inputs of the control valves 9 and 10 for translation in a position in which the compressed air source is connected to the nozzle 1 through the additional line 7.

In accordance with the Venturi effect in narrowing the pipe nozzle 8 pressure passing through the air decreases as the air flow is accelerated. By increasing the velocity of the air flow is directed into the space between the blades 2 and frame rails 2, the switch is cleared from snow and ice with the greatest efficiency.

After removing the thick layer of snow signals at the output of the sensor 5 is characterized by lack of snow on the analog translation. In this case, the processing block 6 generates a corresponding signal to the inputs of the control valves 9 and 10 for their translation into position overlying the source connection of the compressed air from nozzles 1.

Thus, the proposed device makes cleaning switch depending on weather conditions, which allows to reduce energy consumption, improve the efficiency of cleaning and uvelichitsya date of the device.

A device for cleaning the switch from snow and ice containing nozzles with conical nozzles located between the blades and frame rails switch and connected through a supply line to a source of compressed air, characterized in that it introduced sequentially connected sensor snow and ice, mounted on the elements of the switch between its blades, and the processing unit, as well as additional air line, which includes a Venturi nozzle, with additional air line using a three-way adjustable valve connected to the supply line at the site, located in close proximity to the switch, and the input of each control valve is connected to the output of the processing unit.