CN219831281U

CN219831281U - Switch machine test operation box

Info

Publication number: CN219831281U
Application number: CN202321291752.9U
Authority: CN
Inventors: 张乐君
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-10-13
Anticipated expiration: 2033-05-25

Abstract

The utility model discloses a switch machine test operation box, which relates to the field of switch machines, and comprises: the power supply conversion module is used for converting a three-phase alternating current power supply into alternating current 110V and direct current 24V, and is used for supplying a starting power supply of the operation box and representing the use of a loop power supply; the open-phase protection and power output control module is used for controlling the output of the three-phase power supply, combining the manual control of the starting circuit, outputting the three-phase power supply to the operation test and output module in a specified time, and simultaneously, as a loop detection unit of the output power supply, stopping the output of the three-phase power supply when any point in the output loop generates open-phase; compared with the prior art, the utility model has the beneficial effects that: by optimizing the construction test link, labor cost of labor service and time cost of main point test are saved, test pressure of technicians is reduced, influence on normal use equipment is reduced, operation efficiency is improved, and potential safety hazards of the on-road test of the turnout are eliminated.

Description

Switch machine test operation box

Technical Field

The utility model relates to the field of switch machines, in particular to a switch machine test operation box.

Technical Field

The switch machine is important signal basic equipment for reliably switching the switch position, changing the switch opening direction, locking the switch tongue and reflecting the switch position, and can well ensure the driving safety, improve the transportation efficiency and improve the labor intensity of driving personnel. The current mode for controlling the switching operation of the outdoor switch machine mainly depends on a computer interlocking system and an indoor level 1 and level 2 circuit, the interlocking relationship formed by the computer software logic judgment and the relay circuit is matched with each other, the output time of a related power supply is controlled, the switch is operated, position information is collected after the switch is switched in place, and the information is provided for a software system to judge the result and give related alarm information.

Referring to fig. 1 and 2, the original indoor 2-level circuit controls the output of three-phase ac power and 220V ac power for the outdoor switch machine and related indication circuits, which mainly relies on the related contacts of three relays 1DQJF, 1DQJ, 2DQJ to control, when the contacts 1DQJF, 1DQJ, 2DQJ are all sucked up, X1, X2, X5 simultaneously supply three-phase power to form a loop with the internal circuit of the switch machine, at this time, the switch is pulled to the positioning, and BHJ is sucked up to provide conditions for the self-closing circuit of 1DQJF, 1 DQJ. When the switch machine is switched into place, the internal circuit of the switch machine is disconnected, the BHJ falls down, the self-closing circuits of the 1DQJF and the 1DQJ are cut off, so that the 1DQJF and the 1DQJ fall down, and the positioning indication loop is connected; when 1DQJF and 1DQJ are sucked up and 2DQJ fall down, X1, X3 and X4 supply three-phase power simultaneously, the switch machine is pulled towards the reverse position, the action principle is positioned in the same way, and the reverse position indicating loop is connected after the pulling is in place. The positioning indicates the forward straight strand of the turnout, and the reversed position indicates the forward bent strand of the turnout.

Referring to fig. 3,1DQJF, 1DQJ and 2DQJ, the exciting circuit of the relay belongs to a 1-stage control circuit. Besides the excitation electric self-closing circuits of the 1DQJF, 1DQJ and 2DQJ relays, the 1-stage circuit also comprises related contacts of the DCJ, FCJ, YCJ relays driven by a computer system, and the related contacts are used for controlling the sucking-up time of the 1DQJF, 1DQJ and 2DQJ relays.

With the development of transportation, local reconstruction of turnout major repair and yards is more frequent in recent years, and in order to reduce the influence on passenger and cargo transportation to the greatest extent, debugging test is required to be carried out on the pre-paved turnout before the turnout is replaced. In the prior art, the switch debugging test needs to be carried out with the problems of more test operators, high labor intensity, more safety risks of frequently crossing lines, high labor cost, low operation efficiency and the like, such as indoor software modification, related circuit wiring modification, rollback, manual transportation of the switch machine and the like, so that the safety and the efficiency of the switch debugging test are improved, the labor cost is reduced, and the switch debugging test needs to be improved.

Disclosure of Invention

The utility model aims to provide a switch machine test operation box for solving the problems in the technical background.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a switch machine test operation box comprising:

the power supply conversion module is used for converting a three-phase alternating current power supply into alternating current 110V and direct current 24V, and is used for supplying a starting power supply of the operation box and representing the use of a loop power supply;

the open-phase protection and power output control module is used for controlling the output of the three-phase power supply, combining the manual control of the starting circuit, outputting the three-phase power supply to the operation test and output module in a specified time, and simultaneously, as a loop detection unit of the output power supply, stopping the output of the three-phase power supply when any point in the output loop generates open-phase;

the voltage and current observation module is used for observing the electrical characteristics of the three-phase power supply and facilitating the judgment and the search of faults;

the operation test and output module is used for changing signals output to the outdoor switch machine;

the power supply conversion module is connected with the phase failure protection and power supply output control module and the operation test and output module, the phase failure protection and power supply output control module is connected with the operation test and output module, and the voltage and current observation module is connected with the phase failure protection and power supply output control module.

As still further aspects of the utility model: the power conversion module comprises a switch K2 and a transformer, wherein the input end of the switch K2 is connected with a three-phase power supply through the voltage and current observation module, the output end of the switch K2 is connected with the input end of the transformer, the first output end of the transformer outputs 24V direct current voltage through the rectifier, and the second output end of the transformer outputs 110V alternating current voltage.

As still further aspects of the utility model: the voltage and current observation module comprises a voltmeter V and an ammeter A, the voltage and current observation module is connected with the three-phase power supply through a switch K1, the ammeter A is connected in series in one phase of the three-phase power supply, and the voltmeter V is connected in parallel between two phases of the three-phase power supply.

As still further aspects of the utility model: the open-phase protection and power output control module comprises a protector DBQ and a BHJ relay, wherein pins 11, 31 and 51 of the protector DBQ are connected with a voltage and current observation module, pins 21, 41 and 61 of the protector DBQ are connected with an operation test and output module, pins 1 and 2 of the protector DBQ are respectively connected with a third end and a fourth end of the BHJ relay, a first end of the BHJ relay is connected with one end of an action indicator lamp and one end of a self-resetting starting switch, a second end of the BHJ relay is connected with the other end of the action indicator lamp and a power conversion module, and the other end of the self-resetting starting switch is connected with the power conversion module.

As still further aspects of the utility model: the operation test and output module comprises four BHJ switches, three K3 switches, a reverse position representation lamp and a positioning representation lamp, wherein the first ends of the first, second and third BHJ switches are respectively connected with a No. 61 pin, a No. 41 pin and a No. 21 pin of a phase failure protector DBQ, the second end of the first BHJ switch is connected with the first end of the first K3 switch, the third end of the first BHJ switch is connected with the first end of the second K3 switch, the reverse position representation lamp is one end, the other end of the reverse position representation lamp is connected with the second end of the first K3 switch and the output port X5, the third end of the first K3 switch is connected with the output port X3, the second end of the second K3 switch is connected with the first end of the fourth BHJ switch, the second end of the fourth BHJ switch is connected with 110V voltage through a resistor R, the third end of the fourth BHJ switch is suspended, the third end of the second K3 switch is connected with the second end of the second BHJ switch, one end of the positioning representation lamp is connected with the output port X4, the third end of the third K3 switch is connected with the third end of the third K3 switch, and the third end of the third K3 switch is connected with the third end of the third switch is connected with the output port X2.

Compared with the prior art, the utility model has the beneficial effects that:

(1) By optimizing the construction test link, labor cost of labor service and time cost of main point test are saved, and test pressure of technicians is reduced. The influence on normal use equipment is reduced, the operation efficiency is improved, and the potential safety hazard of the on-road test of the turnout is eliminated.

(2) The operation box can carry out pulling test on the switch machine on site only by a three-phase 380V power supply or a three-phase generator, check whether the positioning and the reverse positioning actions of the switch machine and the indication wiring meet the requirements or not, and can be connected to the equipment for pulling test without lifting the switch machine up to the circuit, so that the interference on reuse equipment is reduced.

(3) The operation test box is matched with a three-phase 380V power supply or a three-phase generator to realize the opening and close fitting of a pre-paved turnout, the adjustment of 2MM/4MM and the debugging of fault current in a construction site.

(4) Under the condition of a three-phase 380V power supply, the outdoor switch machine is subjected to positioning, inversion or fault current debugging test at the distribution board or on the side surface of a combined cabinet switch assembly through switch cable wiring and switch cable terminal box wiring.

(5) The switch machine test box is convenient to carry and operate, and the influence on indoor equipment is reduced during construction due to the fact that an indoor computer system and related control circuits are replaced. Meanwhile, the switch machine can be directly installed on a pre-paved turnout for test, and the back and forth moving and installation are avoided. Finally, the turnout pulling test does not need to modify software, wiring and other works indoors, does not need indoor personnel to operate cooperatively, saves test time, can complete the test after a group of turnouts are shortened to five to ten minutes, and improves the operation efficiency.

Drawings

Fig. 1 is a circuit diagram of a conventional indoor 2-stage control circuit.

Fig. 2 is a circuit diagram of an internal circuit of the switch machine.

Fig. 3 is a circuit diagram of a conventional indoor 1-stage control circuit.

Fig. 4 is a circuit diagram of a switch machine test operation box.

Fig. 5 is a circuit diagram of the BHJ excitation circuit after modification.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 4, a switch machine test operation box includes:

In particular embodiments: referring to fig. 4, three manual switch sets are provided for power switching and test operation.

The K1 switch is a three-phase power switch, besides power supply access control, the possibility that the inner side of the K1 is also provided with movable wiring after A, B, C, N is accessed to a power supply is also considered, so that the switch is beneficial to protecting personal safety.

K2 is an emergency change-over switch of 380V and 220V alternating current. The arrangement considers that when the outdoor three-phase power supply is absent, the 220V alternating current can be used for converting 110V representing power and 24V starting power supply, and meanwhile, the manual hand-operated turnout is matched for testing.

K3 is a positioning and reverse test pull switch which is used for simulating a positioning and reverse pull button on computer software, and meanwhile, the contacts of the switch replace 2DQJ related contacts in the original 2-stage circuit in the circuit, so that the circuit and components are simplified, and the operation box can be lighter.

In this embodiment: referring to fig. 4, the power conversion module includes a switch K2 and a transformer, wherein an input end of the switch K2 is connected to a three-phase power supply through the voltage and current observation module, an output end of the switch K2 is connected to an input end of the transformer, a first output end of the transformer outputs 24V dc voltage through the rectifier, and a second output end of the transformer outputs 110V ac voltage.

The magnitude of the input voltage of the transformer is changed by adjusting the switch K2, and 380V or 220V alternating current is selected to be input.

In this embodiment: referring to fig. 4, the voltage-current observation module includes a voltmeter V and an ammeter a, the voltage-current observation module is connected to the three-phase power supply through a switch K1, the ammeter a is connected in series to one phase of the three-phase power supply, and the voltmeter V is connected in parallel between two phases of the three-phase power supply.

The voltmeter V and the ammeter A are arranged, so that when the switch is in a turnout test, when the internal wiring of the switch is wrong, whether the internal circuit is short-circuited or broken-circuit fault is judged through the data of the voltmeter V and the ammeter A.

In this embodiment: referring to fig. 4, the open-phase protection and power output control module includes a protector DBQ and a BHJ relay, pins 11, 31 and 51 of the protector DBQ are connected with the voltage and current observation module, pins 21, 41 and 61 of the protector DBQ are connected with the operation test and output module, pins 1 and 2 of the protector DBQ are respectively connected with a third end and a fourth end of the BHJ relay, a first end of the BHJ relay is connected with one end of an action indicator lamp and one end of a self-resetting starting switch, a second end of the BHJ relay is connected with the other end of the action indicator lamp and the power conversion module, and the other end of the self-resetting starting switch is connected with the power conversion module.

In this embodiment: referring to fig. 3, fig. 4 and fig. 5, the operation test and output module includes four BHJ switches, three K3 switches, a reverse bit indicating lamp, and a positioning indicating lamp, wherein the first ends of the first, second and third BHJ switches are respectively connected with the No. 61 pin, the No. 41 pin and the No. 21 pin of the open-phase protector DBQ, the second end of the first BHJ switch is connected with the first end of the first K3 switch, the third end of the first BHJ switch is connected with the first end of the second K3 switch, the reverse bit indicates one end of the lamp, the other end of the reverse bit indicates the other end of the lamp is connected with the second end of the first K3 switch, the output port X5, the third end of the first K3 switch is connected with the output port X3, the second end of the second K3 switch is connected with the first end of the fourth BHJ switch, the second end of the third K3 switch is suspended through a resistor R, the third end of the third K3 switch is connected with the second end of the second BHJ switch, the third end of the third K3 switch is connected with the third end of the third BHJ switch, and the third end of the third K3 switch is connected with the output port X2.

The exciting and sucking of the original BHJ relay is that the terminals 1 and 4 of the BHJ relay are driven by pins 1 and 2 of a phase failure protector DBQ, when a three-phase power supply is supplied and forms a loop with an internal circuit of a switch machine, the BHJ relay is sucked, a corresponding contact group is closed, and the three-phase power supply is sent to the outdoor switch machine. When the outdoor turnout is switched into place, the circuit inside the switch machine automatically cuts off the loop, the BHJ relay falls down, and the operation that the switch machine is pulled to one side is finished.

The design changes the exciting terminal of the original BHJ relay from 1 terminal and 4 terminal to 3 terminal and 4 terminal, reserves the exciting circuit function of the phase failure protector for driving the BHJ, and is convenient for checking the correctness of the internal circuit loop of the switch machine. Meanwhile, a starting circuit is designed at the terminals 1 and 2 of the BHJ relay, a tester controls and supplies 24V direct current output through a self-resetting starting switch, and the starting circuit is used as a starting command for pulling the switcher, replaces an original indoor computer operation and 1-level control circuit, and is shown in fig. 3. The start-up circuit is provided with an action indication lamp at the same time, and is used for giving a start-up indication. And secondly, the switch machine is used for supervising the switch switching, when the switch machine is switched into place, pins 1 and 2 of the protector DBQ stop power transmission, the action indicates that the lamp is extinguished, and the switch is switched into place. When the switch point is squeezed into foreign matters, the switch machine cannot be switched into place, so that an action circuit is raised, a motor is easy to burn out, and an action indicating lamp is convenient to find the problems in time.

Referring to fig. 1 and 4, in this design, the connection points of the BHJ relays 1, 2, 3 and 4 are used instead of the connection points of the 1DQJ and 1DQJF in the original 2-stage control circuit, when the "self-reset start switch" is pressed, the BHJ relay is instantly sucked up, if the K3 switch is turned to the opposite position (three K3 switches are consistent in action and jointly form a switch group, when different ports of the K3 switch group are moved and controlled, the positioning or the opposite position is selected), and the three-phase power supply is switched on by the X1, the X3 and the X4, so that a loop is formed to an outdoor switch machine. When the starting switch is reset, the exciting circuits of the coils 1 and 2 of the BHJ relay are cut off, but as the switch machine forms a loop, the power supplied by the terminals DBQ-1 and 2 keeps the BHJ relay to be sucked up, when the switch is pulled in place, the internal circuit of the switch machine cuts off the loop, so that the BHJ falls down, and meanwhile, the reverse position is communicated to indicate the loop. And pulling the same to the positioning.

In the prior art (refer to fig. 1), DBJ and FBJ relays are mainly used for checking the internal representation loop of a switch machine, and the contacts of the relays are used for collecting a computer system for a software program to give representation information. Because the operation box does not need to provide acquisition information for the computer system, the DBJ and FBJ relays are replaced by a green and yellow LED (light emitting diode) which is a positioning indication lamp and represents the forward straight of the turnout in the design (refer to FIG. 4); yellow is a reversed indicating light, representing forward bending of the switch.

The resistor R is arranged, and the circuit is connected in series with a 1KΩ resistor, and is mainly used for preventing the power supply part from being damaged when the outdoor load is short-circuited.

The working principle of the utility model is as follows: the power supply conversion module is used for providing stable 110V alternating current and 24V direct current power supply for a representation circuit of an output unit of the test operation box and a starting circuit for turnout pulling; the open-phase protection and power output control module is additionally provided with a starting circuit, modifies the use and setting action indicating lamp, a self-resetting starting switch and the like of a BHJ relay contact, is used for replacing an original computer system and an indoor 1 and 2-level control circuit, directly controls the output time of a three-phase power supply and the pulling instruction of a turnout through an operation box by an outdoor tester, keeps the original interlocking relation, namely, checks an output loop through a open-phase protector DBQ, and checks whether the turnout is converted into place through a indicating circuit, thereby verifying the wiring accuracy of an internal circuit of a switch machine and a terminal box circuit. The voltmeter V and the ammeter A are additionally arranged for various fault checks of the pulling test. The K1 and K2 power supply control and change-over switch is arranged and is mainly used for safety protection and emergency treatment in the test process.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A switch machine test operation box is characterized in that:

this switch machine test operation box includes:

2. The switch machine test operation box of claim 1, wherein the power conversion module comprises a switch K2 and a transformer, the input end of the switch K2 is connected with a three-phase power supply through the voltage current observation module, the output end of the switch K2 is connected with the input end of the transformer, the first output end of the transformer outputs 24V direct current voltage through the rectifier, and the second output end of the transformer outputs 110V alternating current voltage.

3. The switch machine test operation box of claim 1, wherein the voltage and current observation module comprises a voltmeter V and an ammeter a, the voltage and current observation module is connected with the three-phase power supply through a switch K1, the ammeter a is connected in series in one phase of the three-phase power supply, and the voltmeter V is connected in parallel between two phases of the three-phase power supply.

4. The switch machine test operation box of claim 1, wherein the open-phase protection and power output control module comprises a protector DBQ and a BHJ relay, pins 11, 31 and 51 of the protector DBQ are connected with the voltage and current observation module, pins 21, 41 and 61 of the protector DBQ are connected with the operation test and output module, pins 1 and 2 of the protector DBQ are respectively connected with a third end and a fourth end of the BHJ relay, a first end of the BHJ relay is connected with one end of an action indicator lamp, one end of a self-resetting starting switch, a second end of the BHJ relay is connected with the other end of the action indicator lamp, the power conversion module, and the other end of the self-resetting starting switch is connected with the power conversion module.

5. The switch machine test operation box according to claim 4, wherein the operation test and output module comprises four BHJ switches, three K3 switches, a reverse position indicating lamp and a positioning indicating lamp, wherein the first ends of the first, second and third BHJ switches are respectively connected with a pin 61, a pin 41 and a pin 21 of the phase failure protector DBQ, the second end of the first BHJ switch is connected with the first end of the first K3 switch, the third end of the first BHJ switch is connected with the first end of the second K3 switch, the reverse position indicating lamp is connected with the second end of the first K3 switch, the output port X5 is connected with the third end of the first K3 switch, the second end of the second K3 switch is connected with the first end of the fourth BHJ switch, the second end of the fourth BHJ switch is connected with 110V voltage through a resistor R, the third end of the third K3 switch is suspended, the other end of the positioning indicating lamp is connected with the third end of the third K3 switch, the third end of the third K3 switch is connected with the output port X3 is connected with the third end of the third BHJ switch.