CN112896233A - Mutual control reversing action circuit of alternating current-direct current railway signal point machine - Google Patents
Mutual control reversing action circuit of alternating current-direct current railway signal point machine Download PDFInfo
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- CN112896233A CN112896233A CN202110330928.6A CN202110330928A CN112896233A CN 112896233 A CN112896233 A CN 112896233A CN 202110330928 A CN202110330928 A CN 202110330928A CN 112896233 A CN112896233 A CN 112896233A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
- B61L5/062—Wiring diagrams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
- B61L5/065—Construction of driving mechanism
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Abstract
本发明公开了一种交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作为三相交流转辙机的第二转辙机；第一转辙机，包括相导电连接的转辙机直流电机和第一转辙机自身接点组；第二转辙机，包括相导电连接的转辙机交流电机和第二转辙机自身接点组；转辙机直流电机与直流电源相导电连接；转辙机交流电机与交流电源相导电连接；直流电源，通过第二控制开关与第一转辙机自身接点组相导电连接；交流电源通过第一控制开关与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相导电连接。本发明通过对一台交流转辙机和一台直流转辙机的自身接点组进行通断控制，可满足转辙机跑合试验及寿命试验需求。
The invention discloses an AC/DC railway signal switch machine mutual control and commutation action circuit, comprising a first switch machine as a DC switch machine and a second switch machine as a three-phase AC switch machine; The switch machine includes the DC motor of the switch machine connected by phase conduction and the contact group of the first switch machine itself; the second switch machine includes the AC motor of the switch machine connected with the phase conduction and the contact group of the second switch machine itself; The DC motor of the switch machine is electrically connected with the DC power supply; the AC motor of the switch machine is electrically connected with the AC power supply; the DC power supply is electrically connected with the contact group of the first switch machine itself through the second control switch; the AC power supply is electrically connected through the first control switch The switch is electrically connected with the contact group of the second switch machine itself; the contact group of the first switch machine itself is electrically connected with the contact group of the second switch machine itself. The invention can meet the requirements of the running-in test and the life test of the switch machine by performing on-off control of the self-contact group of one AC switch machine and one DC switch machine.
Description
Technical Field
The invention relates to the technical field of circuit control, in particular to a mutual control reversing action circuit of an alternating current and direct current railway signal point machine.
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 testing an ac switch machine and a dc switch machine with a large current in an outdoor field, if a problem of deterioration of a relay or an electrical element occurs, the test cannot be continued because an appropriate control electrical element cannot be found and replaced.
Disclosure of Invention
The invention aims to provide a mutual control reversing action circuit of an alternating current and direct current railway signal point machine, aiming at the technical defects in the prior art.
Therefore, the invention provides a mutual control reversing action circuit of an alternating current-direct current railway signal switch machine, which comprises a first switch machine and a second switch machine;
the first switch machine is a direct current switch machine, and the second switch machine is a three-phase alternating current switch machine;
the first switch machine comprises a switch machine direct current motor and a first switch machine self contact group;
the switch machine direct current motor is in conductive connection with a contact group of the first switch machine;
the second switch machine comprises a switch machine alternating current motor and a second switch machine self contact group;
the switch machine alternating current motor is in conductive connection with a contact group of the second switch machine;
the switch machine direct current motor is in conductive connection with a direct current power supply;
the switch machine alternating current motor is electrically connected with an alternating current power supply;
wherein, a power supply output circuit of the direct current power supply is provided with a second control switch;
the direct current power supply is in conductive connection with the contact group of the first point switch through the second control switch;
wherein, a power supply output circuit of the alternating current power supply is provided with a first control switch;
the alternating current power supply is in conductive connection with the contact group of the second point switch through the first 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 first longitudinal row first pair of contacts is in conductive connection with the contact 25 of the second longitudinal row first pair of contacts in the second point switch self-contact group through a conducting wire;
for the first point switch self-contact group, the contact 25 of the second longitudinal row first pair of contacts is in conductive connection with the contact 45 of the fourth longitudinal row first pair of contacts in the second point switch self-contact group through a conducting wire;
for the first point switch self-contact group, the contact 35 of the first pair of contacts in the third longitudinal row is in conductive connection with the contact 15 of the first pair of contacts in the first longitudinal row in the second point switch self-contact group through a lead wire;
for the self contact group of the first point machine, the contact 45 of the first pair of contacts in the fourth longitudinal row is in conductive connection with the contact 35 of the first pair of contacts in the third longitudinal row in the self contact group of the second point machine through a lead;
for the first point switch self-contact group, the contact 23 of the second longitudinal row second pair of contacts is in conductive connection with the contact 43 of the fourth longitudinal row second pair of contacts in the second point switch self-contact group through a conducting wire;
for the first switch machine self contact group, the contact 33 of the third longitudinal row second pair of contacts is electrically connected with the contact 13 of the first longitudinal row second pair of contacts in the second switch machine self contact group through a conducting wire.
Preferably, regarding the conductive connection between the switch machine dc motor and the first switch machine self contact group, the specific connection structure is as follows:
the direct current terminal D2 of the switch machine direct current motor is in conductive connection with the contact 16 of the first longitudinal row first pair of contacts in the contact group of the first switch machine through a lead;
the switch machine dc motor dc terminal D1 is electrically connected to the first longitudinal row of first pair of contacts 46 in the first switch machine's own contact set by a conductive wire.
Preferably, regarding the conductive connection between the switch machine ac motor and the second switch machine self contact group, the specific connection structure is as follows:
an alternating current terminal V1 in the switch machine alternating current motor is electrically connected with a contact 14 of a first longitudinal row second pair of contacts and a contact 46 of a fourth longitudinal row first pair of contacts in a contact group of the second switch machine through conducting wires;
the switch machine ac motor ac terminal W1 is electrically connected by wire to the first longitudinal row of first pair of contacts 16 and the fourth longitudinal row of second pair of contacts 44 in the second switch machine's own contact set.
Preferably, the phase-C end, the phase-B end and the phase-a end of the alternating current power supply are respectively connected with the moving contact 1, the moving contact 2 and the moving contact 3 of the first control switch;
the first control switch comprises a fixed contact 4, a fixed contact 5 and a fixed contact 6, wherein the fixed contact 4, the fixed contact 5 and the fixed contact 6 are respectively arranged corresponding to the movable contact 1, the movable contact 2 and the movable contact 3;
the static contact 4 of the first control switch is respectively in conductive connection with the contact 24 of the second longitudinal row second butt joint and the contact 34 of the third longitudinal row second butt joint in the contact group of the first switch machine through leads;
the static contact 5 of the first control switch is respectively in conductive connection with a joint 26 of a second longitudinal row first pair of joints and a joint 36 of a third longitudinal row first pair of joints in a joint group of the first switch machine through leads;
the static contact 6 of the first control switch is in conductive connection with an alternating current terminal U1 in the alternating current motor of the switch machine through a lead;
wherein, the voltage output end DZ and the voltage output end DF of the direct current power supply are respectively connected with the movable contact 1 and the movable contact 2 of the second control switch;
for the second control switch, the second 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 second control switch is respectively in conductive connection with a joint 26 of a second longitudinal row first pair of joints and a joint 36 of a third longitudinal row first pair of joints in a joint group of the second switch machine through leads;
the stationary contact 4 of the second control switch is electrically connected to a dc terminal D4 of the switch machine dc motor 501 via a wire.
Compared with the prior art, the invention has the advantages that the structure design is scientific, the action circuit does not need a traditional switch machine special control system, the on-off control (namely on-off control) is carried out on the self contact group of an alternating current switch machine and a direct current switch machine, and the switch machine action logic control function of the AC switch machine and the DC switch machine self contact group is combined, so that the switch machine can be controlled to carry out continuous back-and-forth action or single action (namely single pull-in or single extension action), the running-in test (namely running-in test) and the service life test requirements of the switch machines with two different power supply systems are met, and the invention has great practical significance.
For the mutual control reversing action circuit of the alternating current and 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 impact of larger current can be borne, and the longer service life is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a mutually controlled reversing action circuit of an ac/dc railway signal switch machine according to the present invention, in the embodiment, an ac power source and a dc power source are used to perform running-in tests (i.e., running-in tests) or life tests of two switch machines with different power source systems, fig. 2a is a schematic diagram of a switching-on state of a corresponding longitudinal row of contacts in a first switch machine self-contact group or a second switch machine self-contact group when a first switch machine or a second switch machine is in a pull-in position state;
fig. 2b is a schematic diagram of the mutually controlled reversing action circuit of the alternating current/direct current railway signal switch machine, wherein when the first switch machine or the second switch machine is in a switching state, the corresponding first switch machine self-contact group or the corresponding longitudinal row contact in the second switch machine self-contact group is in a switching state;
fig. 2c is a schematic diagram of the mutually controlled reversing action circuit of the alternating current/direct current railway signal switch machine, wherein when the first switch machine or the second switch machine is in the extended position, the corresponding first switch machine self-contact group or the corresponding longitudinal row contact in the second switch machine self-contact group is in the connection state;
fig. 3 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 mutual control reversing action circuit of an alternating current/direct current railway signal point switch provided by the invention;
fig. 4a is a circuit for mutually controlling and reversing actions of ac/dc railway signal switch machines according to the present invention, in a first embodiment, a schematic diagram of mutually controlling actions of two dc switch machines is shown;
fig. 4b is a schematic diagram of the mutually controlled reversing action circuit of the ac/dc railway signal switch machine according to the first embodiment of the present invention, wherein two dc switch machines are operated in a mutually controlled manner;
fig. 4c is a schematic diagram of the mutually controlled reversing action circuit of the ac/dc railway signal switch machine according to the first embodiment of the present invention, wherein two dc switch machines are operated in a mutually controlled manner;
fig. 4d is a schematic diagram of the mutually controlled reversing action circuit of the ac/dc railway signal switch machine according to the first embodiment of the present invention, wherein two dc switch machines are mutually controlled;
fig. 4e is a schematic diagram illustrating the mutually controlled reversing action of two direct current point switches according to the present invention, in a first embodiment;
fig. 4f is a schematic diagram of the mutually controlled reversing action circuit of the alternating current/direct current railway signal switch machine according to the first embodiment of the invention, wherein the mutually controlled action of two direct current switch machines is six;
fig. 4g is a schematic diagram illustrating the mutually controlled reversing action of two direct current point switches according to the present invention;
fig. 4h is a schematic diagram of the mutually controlled reversing action circuit of the alternating current/direct current railway signal switch machine according to the first embodiment of the invention, wherein the mutually controlled action of two direct current switch machines is eight;
fig. 4i is a circuit for mutually controlling and reversing actions of ac/dc railway signal switch machines according to a first embodiment of the present invention, in which two dc switch machines are schematically controlled and operated in a ninth manner;
fig. 4j is a schematic diagram of the mutually controlled reversing action circuit of an ac/dc railway signal switch machine according to the first embodiment of the present invention, in which two dc switch machines are mutually controlled in a first embodiment;
fig. 4k is a schematic diagram of the mutually controlled reversing action circuit of an ac/dc railway signal switch machine according to the first embodiment of the present invention, wherein two dc switch machines are schematically controlled to mutually act;
fig. 4l is a schematic diagram showing the mutually controlled reversing action of two direct current point switches in a first embodiment of a mutually controlled reversing action circuit of an alternating current/direct current railway signal point switch according to the present invention;
in the figure, 101, an alternating current power supply, 102, a direct current power supply;
3011. a first main control switch 3012, a second main control switch;
401. a switch machine alternating current motor 501, a switch machine direct current motor;
6011. a first switch machine self-contact set 6012, a second switch machine self-contact set.
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 4l, the invention provides a mutual control reversing action circuit of an alternating current/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 is a direct current switch machine, and the second switch machine 2 is a three-phase alternating current switch machine;
the first switch machine 1 comprises a switch machine direct current motor 501 and a first switch machine self contact set 6011;
the switch machine direct current motor 501 is in conductive connection with a first switch machine self contact set 6011;
the second switch machine 2 comprises a switch machine alternating current motor 401 and a second switch machine self contact set 6012;
the point switch alternating current motor 401 is in conductive connection with a second point switch self contact group 6012;
the switch machine direct current motor 501 is in conductive connection with the direct current power supply 201;
the switch machine alternating current motor 401 is in conductive connection with the alternating current power supply 101;
wherein, a second control switch 3012 is arranged on the power supply output line of the dc power supply 201;
the direct-current power supply 201 is in conductive connection with a contact group 6011 of the first switch machine through a second control switch 3012;
wherein, a first control switch 3011 is arranged on a power supply output line of the alternating current power supply 101;
the alternating current power supply 101 is in conductive connection with a contact group 6012 of the second point switch through a first control switch 3011;
the first switch machine self-contact group 6011 and the second switch machine self-contact group 6012 both include four longitudinal rows of contacts, and each longitudinal row of contacts includes three pairs of contact switches (each pair of contact switches includes two contacts);
the first switch machine self-contact set 6011 and the second switch machine self-contact set 6012 are electrically connected by a conductive wire.
In the present invention, referring to fig. 2a to 2c, the first switch machine own contact set 6011 and the second switch machine own contact set 6012 are both contact sets on the first switch machine 1 as a dc switch machine and the second switch machine itself as an ac switch machine, and have the same structure.
The first switch machine self-contact set 6011 and the second switch machine self-contact set 6012 are contact sets of the first switch machine 1 as a dc switch machine and the second switch machine 2 as an ac switch machine, which are conventional, are circuit logic units that control operation states of the switch machines, are provided in the conventional dc switch machine and the conventional ac switch machine, have a function of logic control of operation of the switch machines, and can control operation states (including, for example, a pull-in state, a switching state, and a pull-out state) of the switch machines. The method comprises the following specific steps:
referring to fig. 2a, for the first switch machine self-contact group 6011 or the second switch machine self-contact group 6012, when the first tandem contact and the 3 rd tandem contact of the switch machine self-contact group are both connected, the switch machine is in a pull-in state;
referring to fig. 2b, for the first switch machine self-contact group 6011 or the second switch machine self-contact group 6012, when the first tandem contact and the 4 th tandem contact of the switch machine self-contact group are both turned on, the switch machine is in a switching state;
referring to fig. 2c, for the first switch machine self-contact group 6011 or the second switch machine self-contact group 6012, the switch machine is in the extended state when the second tandem contact and the 4 th tandem contact of the switch machine self-contact group are both turned on.
The function of controlling the operating state of the switch machine shown in fig. 2a to 2c 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 the domestic switch machine, in the invention, the working voltage of the direct current motor (the switch machine direct current motor 501) is DC 160V-DC 220V, the working voltage of the alternating current motor (including the switch machine alternating current motor 401) is three-phase AC 320V-DC 420V, 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. As an existing switch machine, a ZDJ9 type ac switch machine manufactured by tianjin railway signal llc may be used.
In the present invention, the switch machine self-contact group (including the first switch machine self-contact group 6011 or the second switch machine self-contact group 6012) is mainly switched on with different switch quantities according to the position of the switch machine, so as to implement the mutual control circuit logic of the switch machine.
Referring to fig. 3, in the present invention, for a first switch machine self-contact group 6011 and a second switch machine self-contact group 6012, a structure of the switch machine self-contact group (the first switch machine self-contact group 6011 or the second switch machine self-contact group 6012) is schematically shown in fig. 3, wherein the 1 st longitudinal row, the 2 nd longitudinal row, the 3 rd longitudinal row and the 4 th longitudinal row are static contact groups (i.e., the 1 st longitudinal row static contact group J1, the 2 nd longitudinal row static contact group J2, the 3 rd longitudinal row static contact group J3 and the 4 th longitudinal row static contact group J4 shown in fig. 3), that is, after installation, relatively static;
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 will be correspondingly connected with 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, referring to fig. 1, regarding a first switch machine self-contact group 6011 and a second switch machine self-contact group 6012, the two are electrically connected by a conducting wire, and a specific connection structure is as follows:
for the first switch machine self-contact group 6011, the contact 15 (i.e., one port) of the first longitudinal row of the first pair of contacts is electrically connected to the contact 25 of the second longitudinal row of the first pair of contacts in the second switch machine self-contact group 6012 through a conducting wire;
for the first switch machine self-contact group 6011, the contact 25 (i.e., one port) of the second longitudinal row of the first pair of contacts is electrically connected to the contact 45 of the fourth longitudinal row of the first pair of contacts in the second switch machine self-contact group 6012 through a wire;
for the first switch machine self-contact group 6011, the contact 35 (i.e., one port) of the third longitudinal row of the first pair of contacts is electrically connected to the contact 15 of the first longitudinal row of the first pair of contacts in the second switch machine self-contact group 6012 through a wire;
for the first switch machine self-contact group 6011, the contact 45 (i.e., one port) of the fourth longitudinal row of the first pair of contacts is electrically connected to the contact 35 of the third longitudinal row of the first pair of contacts in the second switch machine self-contact group 6012 through a wire;
for the first switch machine self-contact group 6011, the contact 23 (i.e., one port) of the second longitudinal row second pair of contacts is electrically connected to the contact 43 of the fourth longitudinal row second pair of contacts in the second switch machine self-contact group 6012 through a conducting wire;
for the first switch machine self-contact group 6011, the contact 33 (i.e., one port) of the third longitudinal row of the second pair of contacts is electrically connected to the contact 13 of the first longitudinal row of the second pair of contacts in the second switch machine self-contact group 6012 through a wire;
in the present invention, in terms of specific implementation, referring to fig. 1, regarding the conductive connection between the switch machine dc motor 501 and the first switch machine self contact set 6011, a specific connection structure is as follows:
a direct current terminal D2 of the switch machine direct current motor 501 is in conductive connection with a contact 16 of a first longitudinal row first pair of contacts in a contact group 6011 of the first switch machine through a lead;
a direct current terminal D1 of the switch machine direct current motor 501 is in conductive connection with a contact 46 of a first longitudinal row first pair of contacts in a contact group 6011 of the first switch machine through a lead;
in the present invention, referring to fig. 1, as to the conductive connection between the switch machine ac motor 401 and the second switch machine self contact set 6012, the specific connection structure is as follows:
an alternating current terminal V1 in the switch machine alternating current motor 401 is in conductive connection with a contact 14 of a first longitudinal row second pair of contacts and a contact 46 of a fourth longitudinal row first pair of contacts in a second switch machine self contact group 6012 through conducting wires;
the ac terminal W1 of the switch machine ac motor 401 is electrically connected to the contacts 16 of the first pair of contacts in the first longitudinal row and the contacts 44 of the second pair of contacts in the fourth longitudinal row of the second switch machine contact group 6012 by conductive wires.
In order to more clearly understand the technical solution of the present invention, the following detailed description is given with reference to specific examples.
Examples are given.
In the present invention, the circuit structure of the embodiment of the circuit of the present invention is shown in fig. 1, and in the embodiment, an ac power supply and a dc power supply are used to perform a running-in test (i.e. a running-in test) or a life test of a switch machine with two different power supply systems
Referring to fig. 1, a phase C terminal, a phase B terminal, and a phase a terminal of an ac power supply 101 are respectively connected to a moving contact 1, a moving contact 2, and a moving contact 3 of a first control switch 3011;
the first control switch 3011 comprises a fixed contact 4, a fixed contact 5 and a fixed contact 6, wherein the fixed contact 4, the fixed contact 5 and the fixed contact 6 are respectively arranged corresponding to the movable contact 1, the movable contact 2 and the movable contact 3;
the fixed contact 4 of the first control switch 3011 is electrically connected to the contact 24 of the second pair of contacts in the second longitudinal row and the contact 34 of the second pair of contacts in the third longitudinal row in the contact group 6011 of the first switch machine through wires;
the stationary contact 5 of the first control switch 3011 is electrically connected to the contact 26 of the second longitudinal row of the first pair of contacts and the contact 36 of the third longitudinal row of the first pair of contacts in the contact group 6011 of the first switch machine through wires;
the stationary contact 6 of the first control switch 3011 is electrically connected to an ac terminal U1 of the switch machine ac motor 401 via a wire.
Wherein, the voltage output end DZ and the voltage output end DF of the dc power supply 201 are respectively connected to the moving contact 1 and the moving contact 2 of the second control switch 3012;
for the second control switch 3012, it includes stationary contact 3 and stationary contact 4, stationary contact 3 and stationary contact 4 are set up with moving contact 1 and moving contact 2 separately;
wherein, the stationary contact 3 of the second control switch 3012 is electrically connected to the contact 26 of the second longitudinal row first pair of contacts and the contact 36 of the third longitudinal row first pair of contacts in the contact group 6012 of the second switch machine itself through wires;
the stationary contact 4 of the second control switch 3012 is electrically connected to the dc terminal D4 of the switch machine dc motor 501 through a wire.
Note that the first control switch 3011 is a three-pole three-throw switch (a disconnecting switch), and the second control switch 3012 is a double-pole double-throw switch (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. 4a, the first switch machine is in a pull-in position, and the 1 st longitudinal row and the 3 rd longitudinal row of the contact group are connected; the second switch machine is activated by extension, the previous state being: the 1 st and 3 rd longitudinal rows of the contact group are connected.
Step 2: referring to fig. 4b, the first switch machine is in a pull-in position, and the 1 st and 3 rd longitudinal rows of the contact group are connected; the second switch machine is in the extended switching state, and the 1 st and 4 th longitudinal rows of the contact group are connected.
And 3, step 3: referring to fig. 4c, the first switch machine is in a pull-in position, and the 1 st longitudinal row and the 3 rd longitudinal row of the contact group are connected; when the second switch machine is extended to the right position (namely in an extended position state), the 1 st longitudinal row of the contact group is switched off, the power supply of the motor is switched off, and the 2 nd longitudinal row and the 4 th longitudinal row of the contact group are switched on.
And 4, step 4: referring to fig. 4d, 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; in the extended state of the second switch, the 2 nd and 4 th longitudinal rows of the contact group are connected.
And 5, step 5: referring to fig. 4e, the first switch machine 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. 4f, 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 longitudinal row and the 4 th longitudinal row 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. 4g, the first switch machine is in the extended state, 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. 4h, the first switch machine is in the extended state, 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 longitudinal row and the 4 th longitudinal row of the contact group are connected.
Step 9: referring to fig. 4i, the first switch machine is in the extended state, 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. 4j, the first switch machine is pulled into start, the previous state being: 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. 4k, the first switch machine is in the pull-in transition 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. 4l, the first switch machine is pulled into position (i.e. in the pulled-in position 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; 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).
In the present invention, in a concrete implementation, the first switch machine 1 is a dc switch machine, a dc motor of the switch machine is a bidirectional rotating motor, D1, D2, D3 and D4 are motor coil leading-out terminals, wherein 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, the second switch machine 2 is a three-phase ac switch machine, the ac motor of the switch machine is a bidirectional rotating motor, and U1, V1, and W1 are motor coil leading-out terminals, wherein when U1, V1, and W1 are respectively connected to a power A, B, C three-phase power supply, the motor rotates in the forward direction; when the U1, V1, W1 are each connected to power A, C, B, three phase power, the motor will rotate in reverse.
In the present invention, the AC power source 101 may be selected according to the actual working voltage of the switch machine, and may be any voltage power source ranging from AC 320V to DC 420V.
In particular, the DC power supply 201 may be selected according to the actual operating voltage of the switch machine, and may be any voltage in the range of DC 160V to DC 220V, for example.
In a specific implementation, for the dc power supply 201, the voltage output end DZ and the voltage output end DF therein respectively represent a positive electrode and a negative electrode of the dc power supply.
In the present invention, the ac power supply 101 and the dc power supply 201 are used as power sources of the switch machine;
a first main control switch 3011 and a second main control switch 3012, which are switches for turning on or off an output line of an ac power supply;
the switch machine ac motor 401 is an ac motor of the existing three-phase ac switch machine itself, and is a member for converting electric energy into mechanical motion; a switch machine dc motor 501 is a dc motor of the existing dc switch machine itself, and is a component for converting electric energy into mechanical motion;
the first switch machine self-contact set 6011 and the second switch machine self-contact set 6012 are contact sets of the existing switch machine itself, are circuit logic units which control the operation state of the switch machine and are provided on the existing switch machine, have a function of controlling the operation logic of the switch machine, and can control the operation state of the switch machine (for example, including a pull-in state, a conversion state, and an extension state).
In the present invention, when the control switch in fig. 1 is 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.
When the control switch (i.e., the second main control switch 3012) of the first switch machine 1 is turned on, the single-time switching control of the first switch machine 1 is realized by turning on and off the control switch (i.e., the first main control switch 3011) of the second switch machine 2, and when the control switch (i.e., the first main control switch 3011) of the second switch machine 2 is turned on, the single-time switching control of the second switch machine 2 is realized by turning on and off the control switch (i.e., the second main control switch 3012) of the first switch machine 1.
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.
The two 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 present invention, the first switch machine 1 can connect the power circuit of the switch machine 2 through its contact set (i.e. the contact set 6011 of the first switch machine itself); the second switch machine 2 can be connected to the power circuit of the first switch machine 1 by its set of contacts (i.e. its own set of contacts 6012).
In the invention, two AC point switches can realize the reversing action of the point switches by switching on and off different contact sets.
For the invention, when one alternating current power supply and one direct current power supply are adopted, the test work of performance indexes such as running-in test, service life test and the like of the switch machine with two different power supply systems can be carried out.
For the invention, the circuit can realize single conversion experiment of the switch machine through the control switch of each power supply.
Compared with the prior art, the mutual control reversing action circuit of the alternating current and 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 an alternating current power supply and 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 of two switch machines with different power supply systems;
4. for the invention, the circuit can realize single conversion experiment of the switch machine through the control switch of each power supply.
In summary, compared with the prior art, the interactive control reversing action circuit of the alternating current/direct current railway signal switch machine provided by the invention has a scientific structural design, does not need a traditional switch machine dedicated control system, 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 group of an alternating current switch machine and a direct current switch machine and combining the switch machine action logic control functions of the self contact group of the alternating current switch machine and the direct current switch machine, thereby meeting the running-in test (namely running-in test) and service life test requirements of the two switch machines with different power supply systems, and having great practical significance.
For the mutual control reversing action circuit of the alternating current and 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 impact of larger current can be borne, and the longer service life is ensured.
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.
Claims (5)
1. A mutual control reversing action circuit of an AC/DC railway signal switch machine is characterized by comprising a first switch machine (1) and a second switch machine (2);
the first point switch (1) is a direct current point switch, and the second point switch (2) is a three-phase alternating current point switch;
the first switch machine (1) comprises a switch machine direct current motor (501) and a first switch machine self contact group (6011);
the switch machine direct current motor (501) is in conductive connection with a first switch machine self contact group (6011);
the second switch machine (2) comprises a switch machine alternating current motor (401) and a second switch machine self contact group (6012);
the switch machine alternating current motor (401) is in conductive connection with a contact group (6012) of the second switch machine;
the switch machine direct current motor (501) is in conductive connection with the direct current power supply (201);
the switch machine alternating current motor (401) is in conductive connection with the alternating current power supply (101);
wherein, a power supply output circuit of the direct current power supply (201) is provided with a second control switch (3012);
the direct current power supply (201) is in conductive connection with a contact group (6011) of the first point switch through a second control switch (3012);
wherein, a first control switch (3011) is arranged on a power supply output line of the alternating current power supply (101);
the alternating current power supply (101) is in conductive connection with a contact group (6012) of the second point switch through a first control switch (3011);
the first point switch self-contact group (6011) and the second point switch self-contact group (6012) 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 (6011) and the second switch machine self-contact group (6012) are in conductive connection through conducting wires.
2. The alternating current/direct current railway signal switch machine interactive control reversing action circuit according to claim 1, wherein, regarding the first switch machine self-contact group (6011) and the second switch machine self-contact group (6012), the two are electrically connected through a wire, and the specific connection structure is as follows:
for the first switch machine self-contact group (6011), the contact 15 of the first longitudinal row first pair of contacts is in conductive connection with the contact 25 of the second longitudinal row first pair of contacts in the second switch machine self-contact group (6012) through a conducting wire;
for the first switch machine self-contact group (6011), the contact 25 of the second longitudinal row first pair of contacts is in conductive connection with the contact 45 of the fourth longitudinal row first pair of contacts in the second switch machine self-contact group (6012) through a conducting wire;
for the first switch machine self-contact group (6011), the contact 35 of the third longitudinal row first pair of contacts is in conductive connection with the contact 15 of the first longitudinal row first pair of contacts in the second switch machine self-contact group (6012) through a conducting wire;
for the first switch machine self-contact group (6011), the contact 45 of the fourth longitudinal row first pair of contacts is in conductive connection with the contact 35 of the third longitudinal row first pair of contacts in the second switch machine self-contact group (6012) through a conducting wire;
for the first switch machine self-contact group (6011), the contact 23 of the second longitudinal row second pair of contacts is in conductive connection with the contact 43 of the fourth longitudinal row second pair of contacts in the second switch machine self-contact group (6012) through a conducting wire;
for the first switch machine self-contact group (6011), the contact 33 of the third longitudinal row of the second pair of contacts is electrically connected with the contact 13 of the first longitudinal row of the second pair of contacts in the second switch machine self-contact group (6012) through a conducting wire.
3. The alternating current/direct current railway signal switch machine interactive control reversing action circuit according to claim 1, wherein, regarding the conductive connection between a switch machine direct current motor (501) and a first switch machine self contact group (6011), the specific connection structure is as follows:
a direct current terminal D2 of a switch machine direct current motor (501) is in conductive connection with a contact 16 of a first longitudinal row first pair of contacts in a contact group (6011) of a first switch machine through a lead;
the direct current terminal D1 of the switch machine direct current motor (501) is electrically connected with the contact 46 of the first longitudinal row first pair of contacts in the contact group (6011) of the first switch machine through a lead wire.
4. The alternating current/direct current railway signal switch machine interactive control reversing action circuit according to claim 1, wherein, regarding the conductive connection between the switch machine alternating current motor (401) and the second switch machine self contact group (6012), the specific connection structure is as follows:
an alternating current terminal V1 in an alternating current motor (401) of the switch machine is electrically connected with a contact 14 of a first longitudinal row second pair of contacts and a contact 46 of a fourth longitudinal row first pair of contacts in a contact group (6012) of the second switch machine through conducting wires;
an AC terminal W1 of a switch machine AC motor (401) is electrically connected with a contact 16 of a first longitudinal row first pair of contacts and a contact 44 of a fourth longitudinal row second pair of contacts in a second switch machine contact group (6012) through conducting wires.
5. The mutual control commutation action circuit of an ac/dc railway signal switch machine according to claim 1, wherein the phase C terminal, the phase B terminal and the phase a terminal of the ac power supply (101) are connected to the moving contact 1, the moving contact 2 and the moving contact 3 of the first control switch (3011), respectively;
wherein, for the first control switch (3011), it includes stationary contact 4, stationary contact 5 and stationary contact 6, stationary contact 4, stationary contact 5 and stationary contact 6 correspond to moving contact 1, moving contact 2 and moving contact 3 separately and set up;
wherein, the stationary contact 4 of the first control switch (3011) is electrically connected with the joint 24 of the second longitudinal row second butt joint and the joint 34 of the third longitudinal row second butt joint in the joint group (6011) of the first switch machine by wires respectively;
a stationary contact 5 of a first control switch (3011) is respectively in conductive connection with a joint 26 of a second longitudinal row first pair of joints and a joint 36 of a third longitudinal row first pair of joints in a joint group (6011) of the first switch machine through leads;
a stationary contact 6 of the first control switch (3011) is in conductive connection with an alternating current terminal U1 in the alternating current motor (401) of the switch machine through a lead;
wherein, the voltage output end DZ and the voltage output end DF of the direct current power supply (201) are respectively connected with the movable contact 1 and the movable contact 2 of the second control switch (3012);
for a second control switch (3012), the second 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;
wherein, the stationary contact 3 of the second control switch (3012) is electrically connected with the joint 26 of the second longitudinal row first pair of joints and the joint 36 of the third longitudinal row first pair of joints in the joint group (6012) of the second switch machine by leads respectively;
the stationary contact 4 of the second control switch (3012) is electrically connected to a dc terminal D4 of the switch machine dc motor 501 via a wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110330928.6A CN112896233A (en) | 2021-03-26 | 2021-03-26 | Mutual control reversing action circuit of alternating current-direct current railway signal point machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110330928.6A CN112896233A (en) | 2021-03-26 | 2021-03-26 | Mutual control reversing action circuit of alternating current-direct current railway signal point machine |
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| CN112896233A true CN112896233A (en) | 2021-06-04 |
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| CN202110330928.6A Pending CN112896233A (en) | 2021-03-26 | 2021-03-26 | Mutual control reversing action circuit of alternating current-direct current railway signal point machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117310339A (en) * | 2023-10-25 | 2023-12-29 | 天津铁路信号有限责任公司 | Working life test device of direct current switch machine |
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