阅读说明：本技术 一种双直流铁路信号转辙机互控换向动作电路 (Mutual control reversing action circuit of double-direct-current railway signal point switch ) 是由 李倩文 王志文 张华剑 寇二纲 李旺龙 张振 张明召 于 2021-03-26 设计创作，主要内容包括：本发明公开了一种双直流铁路信号转辙机互控换向动作电路,包括作为直流转辙机的第一转辙机和第二转辙机；第一转辙机包括相导电连接的第一转辙机直流电机和第一转辙机自身接点组；第二转辙机包括相导电连接的第二转辙机直流电机和第二转辙机自身接点组；第一转辙机直流电机和第二转辙机直流电机,分别与外部直流电源相导电连接；外部直流电源,通过所述控制开关与第一转辙机自身接点组和第二转辙机自身接点组相导电连接；第一转辙机自身接点组和第二转辙机自身接点组通过导线相导电连接。本发明通过对两台直流转辙机的自身接点组进行通断控制,结合转辙机自身接点组具有的转辙机动作逻辑控制功能,可以满足转辙机的跑合试验以及寿命试验需求。(The invention discloses a mutual control reversing action circuit of double direct current railway signal switch machines, which comprises a first switch machine and a second switch machine, wherein the first switch machine and the second switch machine are used as direct current switch machines; the first switch machine comprises a first switch machine direct current motor and a first switch machine self contact group which are in conductive connection with each other; the second switch machine comprises a second switch machine direct current motor and a second switch machine self contact group which are in conductive connection; the first point switch direct current motor and the second point switch direct current motor are respectively in conductive connection with an external direct current power supply; the external direct current power supply is in conductive connection with the first point switch self-contact group and the second point switch self-contact group through the control switch; the first switch machine self contact group and the second switch machine self contact group are in conductive connection through conducting wires. The invention can meet the running-in test and service life test requirements of the switch machine by controlling the on-off of the self contact groups of the two direct current switch machines and combining the switch machine action logic control function of the self contact groups of the switch machines.)

1. A mutual control reversing action circuit of a double-direct-current railway signal switch machine is characterized by comprising a first switch machine (1) and a second switch machine (2);

the first switch machine (1) and the second switch machine (2) are direct current switch machines;

the first switch machine (1) comprises a first switch machine direct current motor (3011) and a first switch machine self contact group (4011);

the first point switch direct current motor (3011) is in conductive connection with a first point switch self contact group (4011);

the second switch machine (2) comprises a second switch machine direct current motor (3012) and a second switch machine self contact group (4012);

the direct current motor (3012) of the second point switch is in conductive connection with a contact group (4012) of the second point switch;

the first switch machine direct current motor (3011) and the second switch machine direct current motor (3012) are respectively in conductive connection with an external direct current power supply;

a control switch is arranged on a power supply output line of the external direct current power supply and used for controlling to switch on or switch off the power supply output line of the external direct current power supply;

the external direct current power supply is in conductive connection with the first switch machine self contact group (4011) and the second switch machine self contact group (4012) through the control switch;

the first point switch self contact group (4011) and the second point switch self contact group (4012) respectively comprise four longitudinal rows of contacts, and each longitudinal row of contacts comprises three pairs of contact switches;

the first switch machine self contact group (4011) and the second switch machine self contact group (4012) are in conductive connection through a conducting wire.

2. The mutually controlled reversing circuit for a double-dc railway signal switch machine as claimed in claim 1, wherein the first switch machine self contact group (4011) and the second switch machine self contact group (4012) are electrically connected by a wire, and the specific connection structure is as follows:

for the first switch machine self contact group (4011), the contact 15 of the 1 st vertical row 1 st butt joint switch is in conductive connection with the contact 25 of the 2 nd vertical row 1 st butt joint switch in the second switch machine self contact group (4012) through a lead;

for the first switch machine self contact group (4011), the contact 25 of the 1 st butt joint switch in the 2 nd longitudinal row is in conductive connection with the contact 45 of the 1 st butt joint switch in the 4 th longitudinal row in the second switch machine self contact group (4012) through a lead;

for the first switch machine self contact group (4011), the contact 35 of the 1 st butt joint switch in the 3 rd longitudinal row is in conductive connection with the contact 15 of the 1 st butt joint switch in the 1 st longitudinal row in the second switch machine self contact group (4012) through a lead;

for the first switch machine self contact group (4011), the contact 45 of the 1 st butt joint switch in the 4 th longitudinal row is in conductive connection with the contact 35 of the 1 st butt joint switch in the 3 rd longitudinal row in the second switch machine self contact group (4012) through a lead.

3. The mutually controlled reversing circuit of a double-direct-current railway signal switch machine as claimed in claim 1, wherein, regarding the conductive connection between the direct-current motor (3011) of the first switch machine and the contact group (4011) of the first switch machine, the specific connection structure is as follows:

a direct current terminal D2 in a direct current motor (3011) of the first switch machine is in conductive connection with a contact 16 of a 1 st longitudinal row 1 st butt joint switch in a contact group (4011) of the first switch machine through a lead;

the direct current terminal D1 in the direct current motor (3011) of the first switch machine is electrically connected with the contact 46 of the 1 st butt joint switch in the 4 th longitudinal row in the contact group (4011) of the first switch machine through a lead.

4. The mutually controlled reversing action circuit of a double-direct-current railway signal switch machine as claimed in claim 1, characterized in that, regarding the conductive connection between the direct-current motor (3012) of the second switch machine and the contact group (4012) of the second switch machine, the specific connection structure is as follows:

a direct current terminal D2 in a direct current motor (3012) of the second switch machine is in conductive connection with a contact 16 of a 1 st longitudinal row 1 st butt joint switch in a contact group (4012) of the second switch machine through a lead;

the direct current terminal D1 in the direct current motor (3012) of the second switch machine is electrically connected with the contact 46 of the 1 st butt joint switch in the 4 th longitudinal row in the contact group (4012) of the second switch machine through a lead.

5. The double direct current railway signal switch machine mutually controlled reversing action circuit as claimed in any one of claims 1 to 4, wherein when the external direct current voltage includes only one first direct current power source (1011), a first main control switch (2011) is provided on a power supply output line of the first direct current power source (1011);

a voltage output end DZ and a voltage output end DF of the first direct current power supply (1011) are respectively connected with a movable contact 1 and a movable contact 2 of the first main control switch (2011);

for a first main control switch (2011), the first main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

the static contact 3 of the first main control switch (2011) is respectively in conductive connection with a contact 26 of a 2 nd longitudinal row 1 st butt joint switch and a contact 36 of a 3 rd longitudinal row 1 st butt joint switch in a first switch machine self contact group (4011) through leads, and the contact 26 of the 2 nd longitudinal row 1 st butt joint switch and the contact 36 of the 3 rd longitudinal row 1 st butt joint switch in a second switch machine self contact group (4012);

a static contact 4 of the first main control switch (2011) is respectively in conductive connection with a direct current terminal D4 in a first switch direct current motor (3011) and a direct current terminal D4 in a second switch direct current motor (3012) through conducting wires.

6. The double direct current railway signal switch machine mutually controlled reversing action circuit as claimed in any one of claims 1 to 4, wherein when the external direct current voltage includes only one first direct current power source (1011), a first main control switch (2011) is provided on a power supply output line of the first direct current power source (1011);

a voltage output end DZ and a voltage output end DF of the first direct current power supply (1011) are respectively in conductive connection with a movable contact 1 and a movable contact 2 of the first main control switch (2011);

for a first main control switch (2011), the first main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

the static contact 3 of the first main control switch 2011 is respectively in conductive connection with the static contact 4 of the first auxiliary control switch (5011) and the static contact 4 of the second auxiliary control switch (5012) through leads;

a stationary contact 4 of the first main control switch 2011 is respectively in conductive connection with a stationary contact 3 of the first auxiliary control switch (5011) and a stationary contact 3 of the second auxiliary control switch (5012) through leads;

the movable contact 1 of the first auxiliary control switch (5011) is in conductive connection with a direct current terminal D4 in a direct current motor (3011) of the first switch machine through a lead;

the movable contact 1 of the second auxiliary control switch (5012) is in conductive connection with a direct current terminal D4 in a direct current motor (3012) of the second switch machine through a lead;

the movable contact 2 of the first auxiliary control switch (5011) is respectively in conductive connection with a contact 26 of a 2 nd vertical row 1 st butt joint switch and a contact 36 of a 3 rd vertical row 1 st butt joint switch in a contact group (4012) of the second switch machine through conducting wires;

the movable contact 2 of the second auxiliary control switch (5012) is respectively connected with the contact 26 of the 2 nd vertical row 1 st butt-joint switch and the contact 36 of the 3 rd vertical row 1 st butt-joint switch in the contact group (4011) of the first switch machine through conducting wires in an electric conduction mode.

7. The circuit for the mutually controlled reversing action of a double direct current railway signal switch machine according to any one of claims 1 to 4, wherein when the external direct current voltage comprises two direct current power supplies, namely a first direct current power supply (1011) and a second direct current power supply (1012), a first main control switch (2011) and a second main control switch (2012) are respectively arranged on the power supply output lines of the first direct current power supply (1011) and the second direct current power supply (1012);

wherein, the voltage output end DZ and the voltage output end DF of the first direct current power supply (1011) are respectively connected with the movable contact 1 and the movable contact 2 of the first main control switch (2011);

a voltage output end DZ and a voltage output end DF of the second direct current power supply (1012) are respectively connected with a movable contact 1 and a movable contact 2 of the second main control switch (2012);

for a first main control switch (2011), the first main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

for a second main control switch (2012), the second main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

the static contact 3 of the first main control switch (2011) is in conductive connection with a contact 26 of a 2 nd vertical row 1 st butt joint switch and a contact 36 of a 3 rd vertical row 1 st butt joint switch in a contact group (4011) of the first switch machine through a lead;

the static contact 4 of the first main control switch (2011) is in conductive connection with a direct current terminal D4 in a direct current motor (3012) of the second switch machine through a lead;

the static contact 3 of the second main control switch (2012) is in conductive connection with a joint 26 of a 2 nd vertical row 1 st butt joint switch and a joint 36 of a 3 rd vertical row 1 st butt joint switch in a joint group (4012) of the second switch machine through a lead;

the fixed contact 4 of the second main control switch (2012) is electrically connected with a direct current terminal D4 in the direct current motor (3011) of the first switch machine through a lead.

Technical Field

The invention relates to the technical field of circuit control, in particular to a mutual control reversing action circuit of a double-direct-current railway signal point switch.

Background

The point switch is an important signal basic device for reliably switching the position of the turnout, changing the opening direction of the turnout, locking the switch point and reflecting the position of the turnout, and can well ensure the driving safety, improve the transportation efficiency and improve the labor intensity of driving personnel.

In order to ensure the reliability of the switch machine, the switch machine needs to be subjected to a running-in test and a service life test. Running-in tests (namely running-in tests) and service life tests of the existing switch machine are controlled by reciprocating actions through a special control system, and the control system mostly adopts mechanical relays or electrical elements, so that after the control system is used for a long time, the tests can be terminated due to aging of the relays or the electrical elements, and the tests can be carried out after the tests are required to be replaced, and certain maintenance cost can be generated when the control system is used for replacing aged parts.

The running-in test of the switch machine mainly comprises the steps of running-in the parts of the switch machine and ensuring that the switch machine is in an optimal use state when being delivered from a factory. The life test is mainly used for verifying the service condition of the equipment parts within the specified life or verifying the life limit of the parts.

In addition, when a dc switch machine test with a large current is performed in an outdoor field, if a problem of aging of a relay or an electrical element occurs, the test cannot be continued because an appropriate control electrical element cannot be found for replacement.

Disclosure of Invention

The invention aims to provide a mutual control reversing action circuit of a double-direct-current railway signal point switch, aiming at the technical defects in the prior art.

Therefore, the invention provides a mutual control reversing action circuit of a double-direct-current railway signal switch machine, which comprises a first switch machine and a second switch machine;

the first switch machine and the second switch machine are direct current switch machines;

the first switch machine comprises a first switch machine direct current motor and a first switch machine self contact group;

the direct current motor of the first point switch is electrically connected with the contact group of the first point switch;

the second switch machine comprises a second switch machine direct current motor and a second switch machine self contact group;

the direct current motor of the second point switch is electrically connected with the contact group of the second point switch;

the first point switch direct current motor and the second point switch direct current motor are respectively in conductive connection with an external direct current power supply;

a control switch is arranged on a power supply output line of the external direct current power supply and used for controlling to switch on or switch off the power supply output line of the external direct current power supply;

the external direct current power supply is in conductive connection with the first point switch self-contact group and the second point switch self-contact group through the control switch;

the first point switch self-contact group and the second point switch self-contact group respectively comprise four longitudinal rows of contacts, and each longitudinal row of contacts comprises three pairs of contact switches;

the first point switch self-contact group and the second point switch self-contact group are in conductive connection through conducting wires.

Preferably, regarding the first switch machine self-contact group and the second switch machine self-contact group, the two are electrically connected through a conducting wire, and the specific connection structure is as follows:

for the first point switch self contact group, the contact 15 of the 1 st vertical row 1 st butt joint switch is in conductive connection with the contact 25 of the 2 nd vertical row 1 st butt joint switch in the second point switch self contact group through a lead;

for the self contact group of the first point machine, the contact 25 of the 1 st butt-joint switch in the 2 nd longitudinal row is in conductive connection with the contact 45 of the 1 st butt-joint switch in the 4 th longitudinal row in the self contact group of the second point machine through a lead wire;

for the self contact group of the first point machine, the contact 35 of the 1 st butt-joint switch in the 3 rd longitudinal row is in conductive connection with the contact 15 of the 1 st butt-joint switch in the 1 st longitudinal row in the self contact group of the second point machine through a lead wire;

for the first switch machine self contact group, the contact 45 of the 4 th vertical row 1 st butt joint switch is in conductive connection with the contact 35 of the 3 rd vertical row 1 st butt joint switch in the second switch machine self contact group through a conducting wire.

Preferably, regarding the conductive connection between the dc motor of the first switch machine and the contact group of the first switch machine itself, the specific connection structure is as follows:

a direct current terminal D2 in the direct current motor of the first switch machine is in conductive connection with a contact 16 of a 1 st longitudinal row 1 st butt joint switch in a contact group of the first switch machine through a lead;

the DC terminal D1 of the DC motor of the first switch machine is electrically connected with the contact 46 of the 1 st pair of contact switches in the 4 th longitudinal row in the contact group of the first switch machine through a lead.

Preferably, regarding the conductive connection between the dc motor of the second switch machine and the contact set of the second switch machine itself, the specific connection structure is as follows:

a direct current terminal D2 in the direct current motor of the second switch machine is in conductive connection with a contact 16 of a 1 st longitudinal row 1 st butt joint switch in a contact group of the second switch machine through a lead;

the DC terminal D1 of the DC motor of the second switch machine is electrically connected with the contact 46 of the 1 st pair of contact switches in the 4 th longitudinal row in the contact group of the second switch machine through a lead.

Preferably, when the external dc voltage only includes one first dc power supply, a first main control switch is disposed on a power supply output line of the first dc power supply;

a voltage output end DZ and a voltage output end DF of the first direct current power supply are respectively connected with a movable contact 1 and a movable contact 2 of the first main control switch;

for the first main control switch, the first main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

the static contact 3 of the first main control switch is respectively in conductive connection with a contact 26 of a 2 nd longitudinal row 1 st butt joint switch and a contact 36 of a 3 rd longitudinal row 1 st butt joint switch in a contact group of the first point switch by leads, and the contact 26 of the 2 nd longitudinal row 1 st butt joint switch and the contact 36 of the 3 rd longitudinal row 1 st butt joint switch in the contact group of the second point switch;

the static contact 4 of the first main control switch is respectively connected with the direct current terminal D4 in the direct current motor of the first switch machine and the direct current terminal D4 in the direct current motor of the second switch machine in an electric conduction mode through conducting wires.

Preferably, when the external dc voltage only includes one first dc power supply, a first main control switch is disposed on a power supply output line of the first dc power supply;

the voltage output end DZ and the voltage output end DF of the first direct current power supply are respectively connected with the movable contact 1 and the movable contact 2 of the first main control switch in a conductive way;

for the first main control switch, the first main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

the stationary contact 3 of the first main control switch 2011 is electrically connected with the stationary contact 4 of the first auxiliary control switch and the stationary contact 4 of the second auxiliary control switch 5012 through wires;

a stationary contact 4 of the first main control switch 2011 is respectively in conductive connection with a stationary contact 3 of the first auxiliary control switch and a stationary contact 3 of the second auxiliary control switch through leads;

the movable contact 1 of the first auxiliary control switch is in conductive connection with a direct current terminal D4 in the direct current motor of the first switch machine through a lead;

the movable contact 1 of the second auxiliary control switch is in conductive connection with a direct current terminal D4 in a direct current motor of the second switch machine through a lead;

the movable contact 2 of the first auxiliary control switch is respectively in conductive connection with the contact 26 of the 1 st butt-joint switch in the 2 nd longitudinal row and the contact 36 of the 1 st butt-joint switch in the 3 rd longitudinal row in the contact group of the second switch machine through a lead;

the movable contact 2 of the second auxiliary control switch is respectively connected with the contact 26 of the 1 st butt-joint switch in the 2 nd longitudinal row and the contact 36 of the 1 st butt-joint switch in the 3 rd longitudinal row in the contact group of the first switch machine in an electric conduction way through a lead.

Preferably, when the external dc voltage includes two dc power supplies, namely a first dc power supply and a second dc power supply, a first main control switch and a second main control switch are respectively disposed on power supply output lines of the first dc power supply and the second dc power supply;

wherein, the voltage output end DZ and the voltage output end DF of the first direct current power supply are respectively connected with the movable contact 1 and the movable contact 2 of the first main control switch;

the voltage output end DZ and the voltage output end DF of the second direct current power supply are respectively connected with the movable contact 1 and the movable contact 2 of the second main control switch;

for the first main control switch, the first main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

for the second main control switch, the second main control switch comprises a fixed contact 3 and a fixed contact 4, wherein the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the movable contact 1 and the movable contact 2;

the static contact 3 of the first main control switch is in conductive connection with a joint 26 of a 2 nd longitudinal row 1 st butt joint switch and a joint 36 of a 3 rd longitudinal row 1 st butt joint switch in a joint group of the first switch machine through a lead;

the static contact 4 of the first main control switch is in conductive connection with a direct current terminal D4 in a direct current motor of the second switch machine through a lead;

the static contact 3 of the second main control switch is in conductive connection with a joint 26 of a 2 nd longitudinal row 1 st butt joint switch and a joint 36 of a 3 rd longitudinal row 1 st butt joint switch in a joint group of the second point switch through a lead;

the stationary contact 4 of the second main control switch is electrically connected with the dc terminal D4 of the first switch dc motor through a conducting wire.

Compared with the prior art, the mutual control reversing action circuit of the double direct current railway signal switch machine has scientific structural design, does not need a traditional special control system for the switch machine, can realize the control of the switch machine to perform continuous back-and-forth action or single action (namely single pull-in or single extension action) by performing on-off control (namely on-off control) on the self contact groups of the two direct current switch machines and combining the action logic control function of the switch machine of the self contact groups of the two direct current switch machines, thereby meeting the running-in test (namely running-in test) and the service life test requirements of the switch machine and having great practical significance.

For the mutual control reversing action circuit of the double direct current railway signal switch machine, the control logic of the action circuit on the action of the switch machine is realized by adopting the contact group of the switch machine, so that the circuit can bear the impact of larger current and ensure longer service life.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a mutual control reversing action circuit of a dual-dc railway signal switch machine according to the present invention, in the first embodiment, a dc power supply is used to perform a running-in test (i.e., a running-in test) or a life test of two dc switch machines under the same power supply voltage condition;

fig. 2 is a schematic structural diagram of a second embodiment of a mutual control reversing action circuit of a dual-dc railway signal switch machine according to the present invention, in the second embodiment, a dc power supply is used, and an auxiliary control switch is configured for each dc switch machine, so as to perform a running-in test (i.e., a running-in test) or a life test of the two switch machines under the same power supply voltage condition;

fig. 3 is a schematic structural diagram of a third embodiment of a mutual control reversing action circuit of a dual-dc railway signal switch machine according to the present invention, in the third embodiment, two dc power supplies are used to perform a running-in test (i.e., a running-in test) or a life test of the two dc switch machines under different power supply voltage conditions;

fig. 4a is a schematic diagram of the switching state of the corresponding longitudinal row of the first switch machine's own contact group or the second switch machine's own contact group when the first switch machine or the second switch machine is in the pull-in state for the mutually controlled reversing action circuit of the dual direct current railway signal switch machine provided by the present invention;

fig. 4b is a schematic diagram of the switching state of the corresponding longitudinal row of the first switch machine's own contact group or the second switch machine's own contact group when the first switch machine or the second switch machine is in the switching state;

fig. 4c is a schematic diagram of the mutually controlled reversing action circuit of a dual dc railway signal switch machine according to the present invention, wherein when the first switch machine or the second switch machine is in the extended position, the corresponding first switch machine's own contact set or the corresponding longitudinal row of contacts in the second switch machine's own contact set is in the closed position;

fig. 5 is a schematic structural diagram of a point switch self-contact group for a first point switch self-contact group or a second point switch self-contact group in a double-dc railway signal point switch mutual control reversing action circuit provided by the present invention;

fig. 6a is a circuit for mutually controlling and reversing actions of two direct current railway signal switches according to the present invention, in a first embodiment, a schematic diagram of mutually controlling actions of two direct current railway signal switches is shown;

fig. 6b is a schematic diagram of the mutually controlled reversing action circuit of a dual dc railway signal switch machine according to the present invention, in the first embodiment, the mutually controlled action of two dc switch machines is illustrated schematically;

fig. 6c is a schematic diagram of the mutually controlled reversing action circuit of a dual dc railway signal switch machine according to the present invention, in the first embodiment, the mutually controlled action of two dc switch machines is illustrated schematically;

fig. 6d is a schematic diagram of the mutually controlled reversing action circuit of a dual dc railway signal switch machine according to the present invention, in the first embodiment, the mutually controlled action of two dc switch machines is illustrated schematically;

fig. 6e is a schematic diagram illustrating the mutually controlled reversing operation of two direct current railway signal switches according to the first embodiment of the present invention;

fig. 6f is a schematic diagram illustrating the mutually controlled reversing operation of two direct current railway signal switches according to a first embodiment of the present invention;

fig. 6g is a circuit for controlling the reversing operation of two dc railway signal switches according to the present invention, in the first embodiment, two dc railway signal switches are shown in a schematic view;

fig. 6h is a schematic diagram of the mutually controlled reversing action circuit of a dual dc railway signal switch machine according to the present invention, in the first embodiment, the mutually controlled action of two dc switch machines is eight;

fig. 6i is a circuit for controlling the reversing operation of two dc railway signal switches according to the present invention, in which in the first embodiment, two dc railway signal switches are operated in a mutually controlled manner;

fig. 6j is a schematic diagram illustrating the mutually controlled reversing operation of two direct current railway signal switches according to the present invention, in an embodiment, two direct current railway signal switches are schematically controlled by mutually controlling the operation;

fig. 6k is a schematic diagram of the mutually controlled reversing operation circuit of a dual dc railway signal switch machine according to the first embodiment of the present invention, wherein the mutually controlled operation of two dc switch machines is eleven;

fig. 6l is a schematic diagram showing the mutually controlled reversing action circuit of a dual dc railway signal switch machine according to the present invention, in a first embodiment, the mutually controlled action of two dc switch machines is twelve;

in the figure, 1011, a first dc power supply, 1012, a second dc power supply;

2011. a first main control switch 2012, a second main control switch;

3011. a first point machine dc motor 3012, a second point machine dc motor;

4011. a first point switch self-contact group 4012, a second point switch self-contact group;

5011. a first auxiliary control switch 5012, a second auxiliary control switch.

Detailed Description

In order to make the technical means for realizing the invention easier to understand, the following detailed description of the present application is made in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 6l, the present invention provides a mutual control reversing action circuit of a double direct current railway signal switch machine, which is used for circuit control of the railway signal switch machine, and specifically comprises a first switch machine 1 and a second switch machine 2;

the first switch machine 1 and the second switch machine 2 are direct current switch machines;

the first switch machine 1 comprises a first switch machine direct current motor 3011 and a first switch machine self contact group 4011;

the first point switch direct current motor 3011 is in conductive connection with a first point switch self contact group 4011;

the second switch machine 2 comprises a second switch machine direct current motor 3012 and a second switch machine self contact group 4012;

the second point switch direct current motor 3012 is in conductive connection with a contact group 4012 of the second point switch;

the first switch machine direct current motor 3011 and the second switch machine direct current motor 3012 are respectively in conductive connection with an external direct current power supply;

a control switch is arranged on a power supply output line of the external direct current power supply and used for controlling to switch on or switch off the power supply output line of the external direct current power supply;

the external direct current power supply is in conductive connection with the first switch machine self contact group 4011 and the second switch machine self contact group 4012 through the control switch;

the first switch machine self contact group 4011 and the second switch machine self contact group 4012 respectively comprise four longitudinal rows of contacts, and each longitudinal row of contacts comprises three pairs of contact switches (each pair of contact switches comprises two contacts);

the first switch machine self contact group 4011 and the second switch machine self contact group 4012 are electrically connected by a wire.

In the present invention, referring to fig. 4a to 4c, the first switch machine own contact group 4011 and the second switch machine own contact group 4012 are contact groups on the dc switch machine itself and have the same structure.

The first switch machine own contact group 4011 and the second switch machine own contact group 4012 are contact groups that the existing first switch machine 1 and second switch machine 2 have, are circuit logic units that control the operating states of the switch machines that are provided in the existing switch machines, have a function of controlling the operating logic of the switch machines, and can control the operating states of the switch machines (including, for example, a pull-in state, a switching state, and a pull-out state). The method comprises the following specific steps:

referring to fig. 4a, for the first switch machine self contact group 4011 or the second switch machine self contact group 4012, when the 1 st vertical row contact and the 3 rd vertical row contact of the switch machine self contact group are both connected, the switch machine is in a pull-in state;

referring to fig. 4b, for the first switch machine self contact group 4011 or the second switch machine self contact group 4012, when the switch machine self contact group 1 longitudinal row contact and the switch machine self contact group 4 longitudinal row contact are both connected, the switch machine is in a switching state;

referring to fig. 4c, for the first switch machine self contact set 4011 or the second switch machine self contact set 4012, when the switch machine self contact set 2 longitudinal row contact and the 4 longitudinal row contact are both on, the switch machine is in the extended state.

The function of controlling the operating state of the switch machine shown in fig. 4a to 4c is a function of the contact set of the switch machine itself in the related art, and is not described herein again for the sake of the prior art.

It should be noted that, in the present invention, the switch machine, the motor, and the contact set described are not specific to products of any manufacturer, and are based on the position relationship of the contact set in the action process of the existing switch machine, the switch logic of the motor action circuit in the switch machine is set up and set up, and the switch machine is triggered to execute the corresponding action. Based on the practical situation of domestic switch machines, the working voltage of the direct current motor (including the first switch machine direct current motor 3011 and the second switch machine direct current motor 3012) is DC 160V-DC 220V, and the contact group is a rib type contact.

Specifically, as the conventional switch machine, for example, a ZD6 type dc switch machine or a ZD9 type dc switch machine manufactured by tianjin railway signal llc may be used.

In the invention, the switch machine self contact group (comprising the first switch machine self contact group 4011 or the second switch machine self contact group 4012) mainly switches on different switch quantities according to the position of the switch machine, thereby realizing the mutual control circuit logic of the switch machine.

Referring to fig. 5, in the present invention, for the first switch machine self-contact group 4011 or the second switch machine self-contact group 4012, the structure of the switch machine self-contact group (the first switch machine self-contact group 4011 or the second switch machine self-contact group 4012) is schematically shown in fig. 5, wherein the 1 st, 2 nd, 3 rd and 4 th vertical rows are static contact groups (i.e. the 1 st, 2 nd, 3 rd and 4 th vertical row static contact groups J1, J2, J3 and J4 shown in fig. 5), i.e. they are relatively static after installation;

in the invention, a movable contact group D comprising 3 conducting rings is respectively arranged between a 1 st vertical row static contact group J1 and a 2 nd vertical row static contact group J2, and between a 3 rd vertical row static contact group J3 and a 4 th vertical row static contact group J4 (each row of static contact groups comprises 3 pairs of contact switches, and each conducting ring is arranged corresponding to one pair of contact switches);

it should be noted that the structural design and the operation principle of the stationary contact group and the movable contact group are well known technical structures and operation principles in the prior switch machine, and are not described herein again.

That is, the movable contact group is switched on by corresponding to different stationary contact groups according to different operation states of the switch machine. When the movable contact group is connected with different static contact groups, the switch machine can be triggered to carry out different actions, so that the switch machine is in different action states.

Each row of static contact group consists of 3 pairs of contact switches (each pair of contact switches comprises two contacts), and the number of the switches is mainly set based on the number of the switches required by a switch machine field control circuit.

In the present invention, the operating states of the switch machine include a pull-in state, a switch state, and a pull-out state. The operation states of pulling-in, switching, extending and the like are defined by the state of the extending end of a rod piece of the switch machine, and generally, for the switch machine, the 1 st longitudinal row and the 3 rd longitudinal row of the static contact group are in a pulling-in state when being communicated, the 1 st longitudinal row and the 4 th longitudinal row are in a switching state when being communicated, and the 2 nd longitudinal row and the 4 th longitudinal row are in an extending state when being communicated. The drawing-in or drawing-out is mainly used for distinguishing the position of the movable contact point group of the switch machine.

In the present invention, in terms of specific implementation, regarding the first switch machine self contact group 4011 and the second switch machine self contact group 4012, the two are conductively connected by a wire, and a specific connection structure is as follows:

for the first switch machine self contact group 4011, the contact 15 (namely, a port) of the 1 st vertical row 1 st butt joint switch is in conductive connection with the contact 25 of the 2 nd vertical row 1 st butt joint switch in the second switch machine self contact group 4012 through a lead;

for the first switch machine self contact group 4011, the contact 25 (i.e. one port) of the 1 st butt contact switch in the 2 nd longitudinal row is in conductive connection with the contact 45 of the 1 st butt contact switch in the 4 th longitudinal row in the second switch machine self contact group 4012 through a lead;

for the first switch machine self contact group 4011, the contact 35 (i.e. a port) of the 1 st butt-joint switch in the 3 rd longitudinal row is in conductive connection with the contact 15 of the 1 st butt-joint switch in the 1 st longitudinal row in the second switch machine self contact group 4012 through a lead;

for the first switch machine own contact group 4011, the contact 45 (i.e. one port) of the 4 th vertical row 1 st butt contact switch is electrically connected with the contact 35 of the 3 rd vertical row 1 st butt contact switch in the second switch machine own contact group 4012 through a wire.

In the present invention, in terms of specific implementation, regarding the conductive connection between the first switch machine dc motor 3011 and the first switch machine self contact group 4011, a specific connection structure is as follows:

a direct current terminal D2 in a direct current motor 3011 of the first switch machine is in conductive connection with a contact 16 of a 1 st longitudinal row 1 st butt joint switch in a contact group 4011 of the first switch machine through a lead;

the dc terminal D1 of the first switch machine dc motor 3011 is electrically connected to the contact 46 of the 4 th vertical row 1 st butt contact switch in the contact group 4011 of the first switch machine itself through a wire.

In the present invention, in a specific implementation, regarding the conductive connection between the second switch machine dc motor 3012 and the second switch machine self contact group 4012, a specific connection structure is as follows:

a direct current terminal D2 in a direct current motor 3012 of the second switch machine is in conductive connection with a contact 16 of a 1 st longitudinal row 1 st butt joint switch in a contact group 4012 of the second switch machine through a lead;

the direct current terminal D1 in the direct current motor 3012 of the second switch machine is electrically connected with the contact 46 of the 1 st butt contact switch in the 4 th longitudinal row in the contact group 4012 of the second switch machine through a lead.

In order to more clearly understand the technical scheme of the invention, the following detailed description is combined with three specific embodiments.

The first embodiment.

In the present invention, in terms of specific implementation, the circuit structure of the first embodiment of the circuit of the present invention is as shown in fig. 1, and in the first embodiment, a dc power supply is used to perform a running-in test (i.e., a running-in test) or a life test of two dc switches under the same power supply voltage condition;

referring to fig. 1, when the external dc voltage only includes a first dc power source 1011, a first main control switch 2011 is disposed on a power supply output line of the first dc power source 1011;

a voltage output terminal DZ and a voltage output terminal DF of the first direct current power supply 1011 are connected to the movable contact 1 and the movable contact 2 of the first main control switch 2011, respectively;

for the first main control switch 2011, it includes the stationary contact 3 and the stationary contact 4, the stationary contact 3 and the stationary contact 4 are set up with the moving contact 1 and the moving contact 2 correspondingly respectively;

the static contact 3 of the first main control switch 2011 is in conductive connection with the contact 26 of the 2 nd vertical row 1 st butt joint switch and the contact 36 of the 3 rd vertical row 1 st butt joint switch in the first switch self contact group 4011, and the contact 26 of the 2 nd vertical row 1 st butt joint switch and the contact 36 of the 3 rd vertical row 1 st butt joint switch in the second switch self contact group 4012 respectively through conducting wires;

the stationary contact 4 of the first main control switch 2011 is electrically connected to the dc terminal D4 of the first switch dc motor 3011 and the dc terminal D4 of the second switch dc motor 3012 by wires, respectively.

Note that the first main control switch 2011 is a double-pole double-throw switch, such as a disconnecting switch.

To facilitate understanding of the mutual control principle of the switches in the present invention, the operation process of two switches in the control circuit of fig. 1 will be gradually described, and the specific process is as follows:

initial state: the first switch machine and the second switch machine are both in a pull-in state, namely the 1 st longitudinal row and the 3 rd longitudinal row of the contact group are communicated.

Step 1: referring to fig. 6a, the first switch machine is in a pull-in position state, and the 1 st longitudinal row and the 3 rd longitudinal row of the contact group of the first switch machine are communicated; the second switch machine is activated by extension, the previous state being: the second switch machine is connected with the 1 st longitudinal row and the 3 rd longitudinal row of the contact group of the second switch machine.

Step 2: referring to fig. 6b, the first switch machine is in the pull-in position, and the 1 st and 3 rd longitudinal rows of the contact group are connected; the second switch machine is in an extended transition state in which the 1 st and 4 th longitudinal rows of its contact set are engaged.

And 3, step 3: referring to fig. 6c, the first switch is in the pull-in position, and the 1 st and 3 rd longitudinal rows of the contact group are connected; when the second switch machine is extended to the right position, the 1 st longitudinal row of the contact group is disconnected, the power supply of the motor is cut off, and the 2 nd longitudinal row and the 4 th longitudinal row of the contact group are connected.

And 4, step 4: referring to fig. 6d, the first switch is extended to start, and the previous state is: the 1 st longitudinal row and the 3 rd longitudinal row of the contact group are communicated; the second switch machine is in the extended position with the 2 nd and 4 th longitudinal rows of the contact set engaged.

And 5, step 5: referring to fig. 6e, the first switch is in the extended switching state, and the 1 st and 4 th longitudinal rows of the contact group are connected; the second switch machine is in the extended position with the 2 nd and 4 th longitudinal rows of the contact set engaged.

And 6, step 6: referring to fig. 6f, when the first switch machine is extended to the proper position (i.e. in the extended position), the 1 st longitudinal row of the contact group is disconnected, the power supply of the motor is cut off, and the 2 nd and 4 th longitudinal rows of the contact group are connected; the second switch machine is in the extended position with the 2 nd and 4 th longitudinal rows of the contact set engaged.

And 7, step 7: referring to fig. 6g, the first switch is in the extended position, and the 2 nd and 4 th longitudinal rows of the contact group are connected; the second switch machine is pulled into start, the previous state being: the 2 nd and 4 th longitudinal rows of the contact group are connected.

And 8, step 8: referring to fig. 6h, the first switch is in the extended position, and the 2 nd and 4 th longitudinal rows of the contact group are connected; the second switch machine is in a pull-in switching state, and the 1 st and 4 th longitudinal rows of the contact group are connected.

Step 9: referring to fig. 6i, the first switch is in the extended position, and the 2 nd and 4 th longitudinal rows of the contact group are connected; the second switch machine is pulled into position (i.e. in the pulled-in state), the 4 th longitudinal row of the contact group is disconnected, the power supply of the motor is cut off, and the 1 st longitudinal row and the 3 rd longitudinal row of the contact group are connected.

Step 10: referring to fig. 6j, the first switch is pull-in enabled, the previous state is: the 2 nd longitudinal row and the 4 th longitudinal row of the contact group are communicated; the second switch machine is in the pull-in position with the 1 st and 3 rd longitudinal rows of the contact set engaged.

And 11, step 11: referring to fig. 6k, the first switch is in the pull-in switching state, and the 1 st and 4 th longitudinal rows of the contact group are connected; the second switch machine is in the pull-in position with the 1 st and 3 rd longitudinal rows of the contact set engaged.

Step 12: referring to fig. 6l, the first switch machine is in the pull-in position (i.e. in the pull-in position), the 4 th longitudinal row of the contact group is disconnected, the power supply of the motor is cut off, and the 1 st longitudinal row and the 3 rd longitudinal row of the contact group are connected; the second switch machine is in the pull-in position with the 1 st and 3 rd longitudinal rows of the contact set engaged.

After one action cycle of the two switches is finished, the switch contact group is restored to the initial state.

It should be noted that, for the present invention, the pull-in (or extension) start indicates the power circuit communication of the switch machine rod moving in the pull-in (or extension) direction, i.e. the contacts are in 2 rows and 4 rows (1 row and 3 rows); a pull-in (or extension) switching state, which indicates that the switch machine rod is in the process of switching towards the pull-in (or extension) direction, namely the contact is in the connection of 1 row and 4 rows (or the connection of 1 row and 4 rows); pulling (or extending) into position means that the action of the switch machine rod in the pulling (or extending) direction is finished, i.e. the contact is in the connection of 1 row and 3 rows (or in the connection of 2 rows and 4 rows).

For the present invention, the pull-in (or extension) is initiated, corresponding to the switch machine extended position state (or pull-in position state); drawn into (or extended out of) a position corresponding to the switch machine drawn into (or extended out of) a position.

It should be noted that the device is in a pull-in state, that is, in a pull-in state (may also be referred to as a pull-in rest state);

in the extended position, i.e. in the extended position (also referred to as the extended position rest position).

Example two.

In the present invention, in terms of specific implementation, the circuit structure of the second embodiment of the circuit of the present invention is as shown in fig. 2, in the second embodiment, a dc power supply is used, and an auxiliary control switch is configured for each dc switch machine, so as to perform a running-in test (i.e. a running-in test) or a life test of the two switch machines under the same power supply voltage condition;

referring to fig. 2, when the external dc voltage only includes one first dc power source 1011, a first main control switch 2011 is disposed on a power supply output line of the first dc power source 1011;

a voltage output end DZ and a voltage output end DF of the first direct current power supply 1011 are electrically connected to the movable contact 1 and the movable contact 2 of the first main control switch 2011, respectively;

for the first main control switch 2011, it includes the stationary contact 3 and the stationary contact 4, the stationary contact 3 and the stationary contact 4 are set up with the moving contact 1 and the moving contact 2 correspondingly respectively;

the stationary contact 3 of the first main control switch 2011 is electrically connected with the stationary contact 4 of the first auxiliary control switch 5011 and the stationary contact 4 of the second auxiliary control switch 5012 through wires;

a stationary contact 4 of the first main control switch 2011 is respectively in conductive connection with the stationary contact 3 of the first auxiliary control switch 5011 and the stationary contact 3 of the second auxiliary control switch 5012 through conducting wires;

it should be noted that, for the first auxiliary control switch 5011 and the second auxiliary control switch 5012, both include a fixed contact 3 and a fixed contact 4, and the fixed contact 3 and the fixed contact 4 are respectively disposed corresponding to the movable contact 1 and the movable contact 2.

The movable contact 1 of the first auxiliary control switch 5011 is in conductive connection with a direct current terminal D4 in the first switch direct current motor 3011 through a conducting wire;

the movable contact 1 of the second auxiliary control switch 5012 is in conductive connection with a direct current terminal D4 in the direct current motor 3012 of the second switch machine through a lead;

the movable contact 2 of the first auxiliary control switch 5011 is respectively in conductive connection with the contact 26 of the 1 st butt-joint switch in the 2 nd vertical row and the contact 36 of the 1 st butt-joint switch in the 3 rd vertical row in the contact group 4012 of the second switch machine through a lead;

the movable contact 2 of the second auxiliary control switch 5012 is electrically connected to the contact 26 of the 2 nd vertical row of the 1 st pair of contact switches and the contact 36 of the 3 rd vertical row of the 1 st pair of contact switches in the contact group 4011 of the first switch machine through wires.

Note that the first main control switch 2011, the first auxiliary control switch 5011, and the second auxiliary control switch 5012 are all double-pole double-throw switches, such as disconnectors.

Example three.

In the present invention, in a specific implementation, a circuit structure of a third embodiment of the circuit of the present invention is shown in fig. 3, and in the third embodiment, two dc power supplies are used to perform a running-in test (i.e., a running-in test) or a life test of two dc switches under different power supply voltage conditions.

Referring to fig. 3, when the external dc voltage includes two dc power supplies, namely, a first dc power supply 1011 and a second dc power supply 1012, a first main control switch 2011 and a second main control switch 2012 are respectively disposed on power supply output lines of the first dc power supply 1011 and the second dc power supply 1012;

a voltage output end DZ and a voltage output end DF of the first direct current power supply 1011 are respectively connected to the moving contact 1 and the moving contact 2 of the first main control switch 2011;

a voltage output terminal DZ and a voltage output terminal DF of the second dc power supply 1012 are connected to the movable contact 1 and the movable contact 2 of the second main control switch 2012, respectively;

for the first main control switch 2011, it includes the stationary contact 3 and the stationary contact 4, the stationary contact 3 and the stationary contact 4 are set up with the moving contact 1 and the moving contact 2 correspondingly respectively;

for the second main control switch 2012, it includes the fixed contact 3 and the fixed contact 4, the fixed contact 3 and the fixed contact 4 are respectively arranged corresponding to the moving contact 1 and the moving contact 2;

the stationary contact 3 of the first main control switch 2011 is in conductive connection with the contact 26 of the 2 nd vertical row 1 st butt joint switch and the contact 36 of the 3 rd vertical row 1 st butt joint switch in the contact group 4011 of the first switch through a lead;

a stationary contact 4 of the first main control switch 2011 is in conductive connection with a direct current terminal D4 in the direct current motor 3012 of the second switch machine through a lead;

the static contact 3 of the second main control switch 2012 is electrically connected with the contact 26 of the 2 nd vertical row 1 st butt joint switch and the contact 36 of the 3 rd vertical row 1 st butt joint switch in the contact group 4012 of the second switch machine through a wire;

a stationary contact 4 of the second main control switch 2012 is electrically connected with a dc terminal D4 in the first switch dc motor 3011 through a wire;

it should be noted that, the first main control switch 2011 and the second main control switch 2012 may both adopt a double-pole double-throw switch, such as a disconnecting switch.

In the present invention, in a specific implementation, the first switch machine dc motor 3011 and the second switch machine dc motor 3012 are bidirectional rotating motors, D1, D2, D3 and D4 are motor coil leading-out terminals, where D3 is a motor coil short-circuiting terminal; d1 and D4 are electrified, the motor rotates in the positive direction; d2 and D4 are energized, the motor will rotate in reverse.

In the present invention, for practical implementation, the first DC power source 1011 and the second DC power source 1012 may be selected according to actual conditions of the operating voltage of the switch machine, and may be any power source with any voltage ranging from DC 160V to DC220V, for example.

In a specific implementation, for the first dc power supply 1011 and the second dc power supply 1012, the voltage output end DZ and the voltage output end DF therein respectively represent the positive electrode and the negative electrode of the dc power supply.

In the present invention, it should be noted that the first dc power source 1011 and the second dc power source 1012 are used as power sources of the switch machine;

a first main control switch 2011 and a second main control switch 2012 for switching on or off the output line of the dc power supply;

the first switch machine dc motor 3011 and the second switch machine dc motor 3012 are dc motors that are provided in the existing switch machine itself, and are components for converting electric energy into mechanical motion;

the first switch machine contact group 4011 and the second switch machine contact group 4012 are contact groups that the existing switch machine has, are circuit logic units that control the operating state of the switch machine that the existing switch machine has, have a function of controlling the operating logic of the switch machine, and can control the operating state of the switch machine (including, for example, a pull-in state, a switching state, and a pull-out state).

In the present invention, when the control switches in fig. 1, 2 and 3 are closed, the two switches will realize the mutual alternate action through the control logic of the switch action possessed by their own contact group.

In the present invention, the alternate operation of two switches is as follows: first switch draw-in → second switch draw-in → first switch extend → second switch extend → first switch draw-in … …, cycling sequentially.

In the present invention, referring to fig. 2, when the control switch (i.e., the first auxiliary control switch) of the first switch machine 1 is turned on, the control switch (i.e., the second auxiliary control switch) of the second switch machine 2 is turned on/off, thereby realizing the single switching control of the first switch machine 1, and when the control switch (i.e., the second auxiliary control switch) of the second switch machine 2 is turned on, the control switch (i.e., the first auxiliary control switch) of the first switch machine 1 is turned on/off, thereby realizing the single switching control of the second switch machine 2.

In the present invention, the single switching control means that the power of one of the switches is turned off or on to alternately operate the two switches, thereby completing only a half cycle or only one cycle.

In particular, according to the present invention, when the control switch of any power source of the two switch machines is turned off, the alternate operation between the two switch machines is stopped, and the switch machines continue to operate after being powered on again, so that the single switching control of the other switch machine can be completed according to the timing of turning on and off the power source control switch.

In the present invention, referring to fig. 3, when the control switch (i.e., the first main control switch) of the first switch machine 1 is turned on, the control switch (i.e., the second main control switch) of the second switch machine 2 is turned on/off, so as to realize the single-switch control of the first switch machine 1, and when the control switch (i.e., the second main control switch) of the second switch machine 2 is turned on, the control switch (i.e., the first main control switch) of the first switch machine 1 is turned on/off, so as to realize the single-switch control of the second switch machine 2.

The two dc switches, i.e., the first switch 1 and the second switch 2, can automatically cut off the power supply after the switches are switched to the right position through their respective contact sets, thereby stopping the switching operation. This is the function of the switch machine itself, which is the function of the contact set of the switch machine itself, and is not described herein again for the prior art.

In the invention, the first switch machine 1 can be connected with the power circuit of the switch machine 2 through the contact group (namely, the contact group 4011 of the first switch machine itself); the second switch machine 2 can be connected to the power supply circuit of the first switch machine 1 by its set of contacts (i.e. the second switch machine's own set of contacts 4012).

In the invention, two direct current switch machines can realize the reversing action of the switch machines through the on-off of different contact sets.

For the invention, when one direct current power supply is adopted, the test work of performance indexes such as service life tests and the like of two switch machines under the condition of the same power supply voltage can be carried out.

For the invention, when two direct current power supplies are adopted, the test work of performance indexes such as service life tests and the like of two point switches under different voltage conditions can be carried out.

With the present invention, when two dc power supplies are used, single switching control of one switch machine to another can be performed.

According to the invention, when a direct current power supply is adopted and each switch machine is provided with a control switch, the single switching control of one switch machine to another switch machine can be carried out.

Compared with the prior art, the mutual control reversing action circuit of the double-direct-current railway signal point switch provided by the invention has the following advantages:

1. the action circuit of the invention can realize the alternate action of two switches by the self logic control principle of the contact group of the original switch, namely, the first switch 1 can automatically cut off the power supply after being switched in place, thereby stopping the switching, and the power supply loop of the second switch 2 is switched on for switching, after the switch 2 is in place, the power supply can be automatically cut off, thereby stopping the switching, and the reverse action power supply loop of the first switch 1 is switched on for reverse action, and the power supply loop of the second switch 2 is automatically cut off after the first switch 1 is in place for reverse action, thereby stopping the switching, and the reverse action power supply loop of the second switch 2 is switched on for reverse action, thereby completing the alternate action of the two switches.

2. The action circuit of the invention can complete the running-in experiment of the switch machine equipment under the condition of no switch machine special control system, and the logic switch of the circuit directly adopts the contact group of the switch machine, thereby having the capability of bearing large current impact.

3. The action circuit of the invention can adopt a direct current power supply to carry out the test work of performance indexes such as running-in test (namely running-in test) or service life test and the like of two switch machines under the condition of the same power supply voltage;

4. the action circuit of the invention can adopt two direct current power supplies to carry out the test work of performance indexes such as running-in test (namely running-in test) or service life test and the like of two switch machines under different voltage conditions.

5. The action circuit of the invention can realize the single conversion test of the switch machine by configuring an auxiliary control switch for each switch machine.

In summary, compared with the prior art, the mutually controlled reversing action circuit of the double direct current railway signal switch machine provided by the invention has a scientific structural design, does not need a traditional control system special for the switch machine, can control the switch machine to perform continuous back-and-forth action or single action (namely single pull-in or single extension action) by performing on-off control (namely on-off control) on the self contact groups of the two direct current switch machines and combining the switch machine action logic control function of the self contact groups of the two direct current switch machines, thereby meeting the running-in test (namely running-in test) and service life test requirements of the switch machine, and having great practical significance.

For the mutual control reversing action circuit of the double direct current railway signal switch machine, the control logic of the action circuit on the action of the switch machine is realized by adopting the contact group of the switch machine, so that the circuit can bear the impact of larger current and ensure longer service life.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.