Main disconnection control circuit of HXD1B type locomotive

Abstract

A main break control circuit of an HXD1B type locomotive comprises a main break hard wire loop and a main break control loop, the main break hard wire loop is composed of cab emergency buttons at the two ends, a U99 key valve, a Buchy relay and the like, the main break control loop is composed of a relay K01 and a relay K02, and the cab emergency buttons, the U99 key valve, the Buchy relay, the relay K01 and the relay K02 are connected in series. And the relay K01 is connected with the SKS3 module B17 and inputs an E13115 signal to the SKS3 module B17. When the relay breaks down during operation of the locomotive, the microcomputer display screen can quickly pop up a fault prompt of the fault relay, so that a steward can quickly perform emergency disposal, and the risks of locomotive breakage and online rescue are eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric locomotive, especially a HXD1B type locomotive main break control circuit. BACKGROUND

[0002] HXD1B type electric locomotive is the main force vehicle type of existing railway trunk freight transportation in our country, and the HXD1B type locomotive main break control loop mainly comprises two parts of the main break hard wire loop composed of the emergency button of both ends driver's room, U99 key valve, Buch relay and the main break control loop composed of relay = 21-A11-K01 and relay = 21-A11-K02.

[0003] In the existing HXD1B type locomotive application process, after the locomotive pantograph rises, when CCU detects that the main break closing condition all meets the condition of table 1, the " main breaker icon " in microcomputer display screen will show green, at this time, the operation occupies the main break closing key group of driver's room, then the microcomputer system will output " A138B_06, A140_02 combined main break closing instruction, ensures that " 21-A11-K01 " is attracted, thereby ensuring that the electromagnetic valve in vacuum main breaker acts, and ensuring that the main break is closed.

[0004] The relay = 21-A11-K01 relay closing state is not monitored in the current HXD1B locomotive main break control loop, so that when the relay = 21-A11-K01 relay closing fault occurs when the locomotive is running on the line, the microcomputer display screen will only report " 0027 main break closing fault ", " 0078 main inverse 1 detects that the main break feedback signal fault ", " 0142 main inverse 2 detects that the main break feedback signal fault ", so the relay = 21-A11-K01 signal fault will not be prompted, and the crew cannot quickly lock the fault point, resulting in on-line parking rescue, and seriously affecting railway transportation. SUMMARY

[0005] The utility model solves the technical problem to provide a kind of HXD1B type locomotive main break control circuit, ensure that when the relay fault occurs when locomotive runs, microcomputer display screen can quickly pop up the fault prompt of fault relay, ensure that crew can quickly emergency disposal, eliminate the risk of locomotive breakdown and on-line rescue.

[0006] The utility model discloses a technical scheme for solving the above technical problems: a HXD1B type locomotive main break control circuit, including the main break hard line loop that is composed of two end driver room emergency button, U99 key valve, buhe relay etc. and the main break control circuit that is composed of relay K01 and relay K02, driver room emergency button, U99 key valve, buhe relay, relay K01 and relay K02 are mutually connected in series, relay K01 is connected with SKS3 module B17 and inputs E131 15 signal to it.

[0007] As an improvement, the buhe relay is connected with the SKS3 module B5 and inputs the E131 10 signal to it.

[0008] As an improvement, the relay K02 is connected with the SKS3 module A13 and inputs the E131 05 signal to it.

[0009] As an improvement, the main break control circuit is installed in the low voltage cabinet, and a spare relay consistent with the model of the relay K01 is installed in a reserved interface position in the low voltage cabinet.

[0010] As an improvement, the high level of the E131 15 signal indicates that the relay K01 relay works normally, and when the E131 15 signal is low level and the E131 05 signal is high level, it indicates that the relay K01 relay has a closing fault.

[0011] The utility model compared with prior art brings beneficial effect is:

[0012] By optimizing the main break control circuit of HXD1B locomotive, the relay K01 action detection signal is added on the basis of the existing circuit, the existing E131_15 signal is adjusted from the original 16D terminal row of the low voltage cabinet =92-X151.03 to the 44B terminal row of the low voltage cabinet =92-X151.14, and the signal definition in the microcomputer control system is optimized. When the locomotive line runs, if the relay K01 appears closing fault or auxiliary interlocking fault, the microcomputer display screen can first report the relay K01 fault prompt, so that the attendant can replace the faulty relay with a spare relay to quickly solve the fault and eliminate the locomotive line parking accident. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is main break control circuit. DETAILED DESCRIPTION

[0014] The utility model will be further described below in combination with the drawings of the specification.

[0015] As Figure 1 shown, a main break control circuit of HXD1B locomotive, including the main break hard wire loop composed of two end driver room emergency button, U99 key valve, Buch relay and the main break control circuit composed of relay K01 and relay K02, the driver room emergency button, U99 key valve, Buch relay, relay K01 and relay K02 are mutually connected in series. The relay K01 is connected with SKS3 module B17 and inputs E131_15 signal to it;The Buch relay is connected with SKS3 module B5 and inputs E131_10 signal to it;The relay K02 is connected with SKS3 module A13 and inputs E131_05 signal to it. E131_15 signal high level indicates that the relay K01 relay works normally, when E131_15 signal is low level and E131_05 signal is high level, it indicates that the relay K01 relay closing fault. The main break control circuit is installed in the low voltage cabinet, and a spare relay consistent with the model of the relay K01 is installed in the reserved interface position in the low voltage cabinet.

[0016] The utility model principle: through optimizing HXD1B type locomotive main break control circuit, on the basis of existing circuit increases relay K01 action detection signal, utilizes existing E131_15 signal, will this signal by originally connected in low voltage cabinet =92-X151.03 terminal row's 16D adjustment to low voltage cabinet =92-X151.14 terminal row's 44B, and to microcomputer control system inner signal definition is optimized. When locomotive line operation, if relay K01 appears close fault or auxiliary interlock fault, microcomputer display screen can first time report relay K01 fault prompt, ensures that the attendant can replace the fault relay through using spare relay, and fast solution fault, eliminates locomotive line parking accident.

Claims

1. A HXD1B type locomotive main break control circuit, comprising a main break hard-wired loop composed of two end cab emergency buttons, a U99 key valve, a Buch relay and the like, and a main break control loop composed of a relay K01 and a relay K02, the cab emergency buttons, the U99 key valve, the Buch relay, the relay K01 and the relay K02 being connected in series with each other; characterized in that: The relay K01 is connected with the SKS3 module B17 and inputs the E131_15 signal to it.

2. The main break control circuit of a HXD1B-type locomotive according to claim 1, characterized in that: The Buch relay is connected with the SKS3 module B5 and inputs the E131_10 signal to it.

3. The main break control circuit of a HXD1B-type locomotive according to claim 1, characterized in that: The relay K02 is connected with the SKS3 module A13 and inputs the E131_05 signal to it.

4. The main break control circuit of a HXD1B-type locomotive according to claim 1, characterized in that: The main break control circuit is installed in the low-voltage cabinet, and a standby relay with the same model as the relay K01 is installed in the reserved interface position in the low-voltage cabinet.

5. The main break control circuit of a HXD1B-type locomotive according to claim 3, characterized in that: The high level of the E131_15 signal indicates that the relay K01 relay is working normally. When the E131_15 signal is low and the E131_05 signal is high, it indicates that the relay K01 relay closing fault.

Images