SU1504132A1 - Apparatus for remote control of engineerъs brake valve in rail vehicle - Google Patents

Abstract

This invention relates to railway transport. The purpose of the invention is to increase reliability. The device contains a braking solenoid valve (EWT) 1 and a tempering solenoid valve (EVO) 2. EVT 1 has a valve 3, a rod 4, and a valve 5 cavity. Equalizing tank (UR) 6 is connected with cavity 5. Cavities 4 and 5 are connected by a hole 7, blocked by valve 3 when voltage is applied to computer 1 in a train position and in a position of overlap. The valve 3 senses the force of the springs 8 and 9. The force of the spring 8 is greater than the force of the spring 9. When the valve 3 is closed, the force of compressed air from UR 6 acts on the valve 3 in the direction of its closing. This eliminates leaks from RUR 6. The EVO 2 has a double-seat valve 10, a valve 11 and a rod 12 cavity. The cavity 12 is connected to the hole 13 with the atmosphere and the hole 14 with the cavity 11. The channel 15 communicates the cavity 11 with the feed line. Channel 18 permanently connects cavity 11 of the EVO 2 with cavity 4 of the EUT 1. Valves 10 and 17 act on valve 10. Spring 17 exerts more force on the spring 16. When voltage is applied to the EVO 2 when the brake is released and charged, the valve 10 blocks the hole 14. When the EVO 2 is de-energized, the valve 10 closes the channel 15 in the position of the shut-off and the valve 15. If the valve 10 has leaks, the compressed air from the feed line goes into the atmosphere through the hole 14, additional cavity 12, hole 13. Pressure build-up in UR 6 not happening. 1 il.

Description

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hole 14 with a cavity 11, Channel 15 communicates cavity 11 with the supply line. Channel 18 permanently connects cavity 11 of the EVO 2 with cavity 4 of EVT 1. Springs 17 and 16 affect the valve. Spring force 17 is greater than spring 16, When voltage is applied to the EVO 2 when the brake is discharged and charged, the valve 10 overlaps JQ em hole 14. When de-energized

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The EVO 2 in the train position and blocked the valve 10 closes the channel 15. If the valve 10 has leaks, the compressed air from the feed line goes into the atmosphere through the hole 14, the additional cavity 12 and the hole 13. There is no pressure accumulation in the UR 6. 1 il.

The invention relates to railway transport, and more specifically to remote control devices of driver's cranes for controlling the brakes of railway vehicles, for example, to control pneumatic brakes of rolling stock of main railways.

The purpose of the invention is to increase reliability.

The drawing shows schematically the proposed device for remote control of the machinist crane.

The device comprises a braking solenoid valve 1, a tempering electromagnetic valve 2. The braking solenoid valve 1 has a valve 3, a rod cavity 4, a valve cavity 5 connected to a surge tank 6, Cavities 4 and 5 are connected by an aperture 7 that is blocked by valve 3 when voltage is applied to valve 1. The valve 3 receives force springs 8 and 9. The force of the rod 8 is greater than the force of the spring 9. The tempering solenoid valve 2 has a double-seat valve 10, a valve cavity 11, and a rod cavity 12, which is connected with atmosphere by aperture 13. Hole 14 communicates cavities 12 and 11 between them. Channel 15 communicates cavity 11 with a supply line (not shown). When voltage is applied to valve 2, valve 10 closes hole 14. When valve 2 is de-energized, valve 10 closes channel 15. Valve 10 perceives the force of the springs 16 and 17. The force of the spring 17 is greater than the force of the spring 16. Kansh 18 constantly connects the cavities 11 and 4.

Equalizing tank 6 is connected with a pressure switch and, in a train position, with a pressure reducer of a crane driver (not shown).

The device for remote control of the driver's crane operates as follows.

When charging and releasing the brake, voltage is applied to the electromagnetic solenoid valve 2. This 1 braking valve 1 is de-energized. The valve 10 closes the opening 14 and opens the channel 15. Compressed air from the supply line through the channel 15, the valve cavity 11, the channel 18, the cavity 4, the open hole 7 and the cavity 5 enters the surge tank 6. The balancing tank 6 is filled with compressed air to the specified the values and operation of the driver's crane pressure relay (not shown). In a brake line (not shown) a pressure is established equal to the pressure in the surge tank.

In the train position, the voltage is released from the electromagnetic release valve 2, and the braking voltage is applied to the electromagnetic valve 1. The valve 3 closes the opening 7. The valve 10 moves downward (according to the drawing) under the force of the spring 17, the channel 15 closes and the opening 14 opens. The force of compressed air from the surge tank 6, acting on the valve 3 in the direction of closing it, ensures that it closes the opening 7 reliably, and there are no leaks from the surge tank 6, i.e. spontaneous braking is eliminated. If the valve 10 leaks, the compressed air from the feed line goes into the atmosphere through it.

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through the opening 1A, the additional cavity 12, the opening 13, the pressure in the surge tank does not accumulate. When braking from the braking solenoid valve 1, the voltage is released. The valve is lowered (according to the drawing), opening 9 hole 7. Equalizing reservoir 6 communicates with the atmosphere through cavity 4, channel 18, cavity 11, hole 14, cavity 12 and hole 13. The braking process is carried out. For the overvoltage, the braking solenoid valve 1 is energized. The valve 3 closes the opening 7. Equalizing tank 6 is separated from the atmosphere. The force of compressed air from the surge tank 6 to the valve 3 ensures reliable shut-off of the valve 3 with the valve 7. There is no leakage from the surge tank 6, i.e. loss of brake control is eliminated. Compressed air from the supply line, if there are leaks in the valve 10 escapes into the atmosphere through the opening 13 and no pressure build-up in the surge tank occurs. Thereby eliminating the spontaneous release of the brake when overlapped.

Claims (1)

Invention Formula A device for remote control of a crane driver for a railroad vehicle brake brake containing a braking solenoid valve connected to the surgeon’s balancing tank and the tempering solenoid valve connected to the power supply 41 - 5 0 5 About five 0 32 ( line, while one valve is made with a body divided by a partition into rod and valve cavities, the valve of this valve is made double-seat, one of its saddle is formed by the edges of the opening in the partition, and the other is by edges of the coaxial opening in the end wall limiting the valve cavity, the side wall of which has an opening for connection to another valve, the valve is in a de-energized state, the valve is pressed against the seat on the end wall, in the wall bounding the rod cavity, an opening is made The coal valve is made with a valve cavity, end seat and two connecting holes, characterized in that, in order to increase reliability, the release valve is a double-valve valve in which the hole in the wall of the rod cavity is in communication with the atmosphere, and the hole in the end wall is connected to the supply line, the other valve is a brake valve, in which a schtokov cavity is made, separated by a septum from the valve cavity, and a hole is made in the septum which formed the seat, one connecting hole is made in the wall of the valve cavity and connected to the surge tank, and the other in the wall of the rod cavity and connected to the hole in the side wall of the valve cavity release valve, and in a de-energized state of the brake valve, the valve is retracted from the seat .