Alternating current switch machine operation test device

Abstract

The invention provides an alternating-current switch machine operation test device which comprises an alternating-current action circuit used for controlling an alternating-current switch machine to perform positioning or / and anti-position action and an alternating-current representation circuit used for representing the positioning or anti-position state of the alternating-current switch machine. The power input end of the alternating-current action circuit and the power input end of the alternating-current indication circuit are both connected with the mobile power source, and the power output end of the alternating-current action circuit and the power output end of the alternating-current indication circuit are connected in parallel and then connected with the wire inlet end of the alternating-current switch machine. The device gets rid of the limitation of the connection mode of a mechanical fixed power supply and a mechanical fixed control circuit, can achieve the action test and state representation of the AC switch machine at the installation and construction site of the switch machine, avoids the temporary pulling of the power supply or the carrying of a generator in the construction process, is convenient to carry, and is convenient to use. After each switch machine is installed on site, timely power transmission test can be ensured, the construction efficiency is improved, and the product quality and reliability are ensured.

Description

Background Art

[0002] The switch machine is an important equipment for railway signal switch conversion. The switch machine is heavy, complex in structure, and high in precision. Bumps and changes in temperature and humidity will affect the stability of the equipment. After the switch machine is produced, it will be sent to the maintenance station of the electrical section for product quality inspection, or the electrical section will arrange special personnel to go to the factory to test electrical, mechanical and other related data. After the inspection is completed, it will be transported to the construction site for installation and use. During transportation, it is inevitable that invisible damage will be caused to the machinery and circuits of the switch machine (the internal components of the switch machine may be damaged by bumps during transportation). Therefore, the switch machine must be tested again after it is transported to the installation construction site.

[0003] At present, in the existing station renovation construction site or the new station construction process, it is generally necessary to wait for the completion of the construction of the new machine room and the machine room to have a temporary voltage-stabilized power supply, and the outdoor cables to be laid before the switch machine can be tested. Or, the switch machine can be tested by temporarily pulling the power supply from a long distance or moving the generator out of the control circuit to supply power. Therefore, the indoor and outdoor environments of the current installation construction site cannot test the switch machine without power supply testing, and the parameters and related status indications cannot be tested. Summary of the invention

[0004] In view of the above technical problems, the technical solution adopted by the present invention is:

[0005] According to one aspect of the present application, an AC switch machine operation test device is provided, comprising:

[0006] AC action circuit, used to control the AC switch machine to perform positioning and / or reverse action;

[0007] AC indicating circuit, used to indicate the positioning or reverse position state of the AC switch machine;

[0008] The power input end of the AC action circuit and the power input end of the AC indication circuit are both connected to the mobile power supply, and the power output end of the AC action circuit and the power output end of the AC indication circuit are connected in parallel and connected to the incoming line end of the AC switch machine.

[0009] In an exemplary embodiment of the present application, the AC display circuit is connected to the mobile power supply through a display circuit conversion transformer, the primary side of the display circuit conversion transformer is connected to the mobile power supply, and the secondary side of the display circuit conversion transformer is connected to the AC display circuit.

[0010] In an exemplary embodiment of the present application, the AC action circuit includes:

[0011] A frequency converter connected to the mobile power source, and used for converting a first AC voltage output by the mobile power source into a second AC voltage for operating the AC switch machine;

[0012] The first switch K1 is connected to the frequency converter and the AC switch machine, and is used for transmitting the second AC voltage to the positioning action circuit or the reverse action circuit of the AC switch machine, so that the AC switch machine performs positioning action or reverse action.

[0013] In an exemplary embodiment of the present application, the AC representation circuit includes:

[0014] The third switch K3 is connected to the secondary side of the indicating circuit conversion transformer and is used to transmit the voltage output by the indicating circuit conversion transformer to the positioning indicating circuit or the reverse indicating circuit of the AC switch machine;

[0015] The second switch K2 is connected to the secondary side of the circuit conversion transformer, the third switch K3, and the AC switch machine, and is used to control the conduction or disconnection between the third switch K3 and the AC switch machine;

[0016] The first reverse position indicating relay is connected to the third switch K3 and the reverse position indicating circuit of the AC switch machine, and is used to indicate the reverse position state of the AC switch machine;

[0017] The first position indicating relay is connected to the third switch K3 and the position indicating circuit of the AC point switch machine, and is used to indicate the position state of the AC point switch machine.

[0018] In an exemplary embodiment of the present application, the first switch K1 includes a first switch contact K11, a first switch contact K12 and a first switch contact K13, the first switch contact K11 is connected to the positioning action circuit of the AC switch machine, the first switch contact K12 is empty, and the first switch contact K13 is connected to the reverse action circuit of the AC switch machine.

[0019] In an exemplary embodiment of the present application, the third switch K3 includes a third switch contact K31, a third switch contact K32 and a third switch contact K33, the third switch contact K31 is connected to the positioning indication circuit of the AC switch machine, the third switch contact K32 is empty, and the third switch contact K33 is connected to the reverse position indication circuit of the AC switch machine.

[0020] In an exemplary embodiment of the present application, the second switch K2 includes a second switch contact K21, a second switch contact K22, a second switch contact K23, a second switch contact K24 and a second switch contact K25, the second switch contact K21 is connected to the secondary side of the circuit conversion transformer and the AC switch, the second switch contact K22, the second switch contact K23 is connected to the third switch contact K31 and the positioning indication circuit of the AC switch, and the second switch contact K24, the second switch contact K25 is connected to the third switch contact K33 and the reverse position indication circuit of the AC switch.

[0021] In an exemplary embodiment of the present application, the first reverse position indicates that the relay is arranged on a branch between the third switch contact K33 and the second switch contact K24.

[0022] In an exemplary embodiment of the present application, the first positioning indicates that the relay is arranged on a branch between the third switch contact K31 and the second switch contact K23 .

[0023] In an exemplary embodiment of the present application, a voltmeter and an AC ammeter are provided on the three-phase branch to which the frequency converter and the first switch K1 are connected.

[0024] The present invention has at least the following beneficial effects:

[0025] The AC switch machine operation test device of the present invention comprises an AC action circuit for controlling the AC switch machine to perform positioning and / or reverse action and an AC indication circuit for indicating the positioning or reverse state of the AC switch machine. The power input end of the AC action circuit and the power input end of the AC indication circuit are both connected to a mobile power source. The power output end of the AC action circuit and the power output end of the AC indication circuit are connected in parallel to the incoming line end of the AC switch machine. On the basis of the standard AC switch machine automatic control circuit and indication circuit, a set of simplified manual control circuits with complete detection and test functions is designed and manufactured. At the same time, an external mobile power source is used to provide power for the switch machine, and a set of The matching mobile power supply adopts outdoor charging power supply with appropriate size and weight. The AC action circuit, AC indication circuit and mobile power supply are independent units, which can be plugged in on site, convenient to carry and use, and get rid of the limitations of the connection method of mechanical fixed power supply and mechanical fixed control circuit. It can realize the action test and status indication of AC switch machine at the installation and construction site of the switch machine to test the correctness of the rotation and indication circuit of the AC switch machine. It eliminates the process of temporarily pulling power supply or carrying generator during construction. It is easy to carry and ensures that each switch machine can be powered on and tested in time after installation on site, thereby improving construction efficiency and ensuring product quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A block diagram of the AC switch machine operation test device provided by an embodiment of the present invention;

[0028] Figure 2 A circuit schematic diagram of an AC switch machine operation test device provided by an embodiment of the present invention;

[0029] Figure 3 A block diagram of the AC / DC switch machine operation test device provided by an embodiment of the present invention;

[0030] Figure 4 A circuit schematic diagram of a DC switch machine operation test device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] like Figure 1 As shown, an AC switch machine operation test device includes an AC action circuit, an AC indication circuit, a mobile power supply and an indication circuit conversion transformer, wherein the power input end of the AC action circuit is connected to the mobile power supply, the power input end of the AC indication circuit is connected to the mobile power supply through the indication circuit conversion transformer, the primary side of the indication circuit conversion transformer is connected to the mobile power supply, the secondary side of the indication circuit conversion transformer is connected to the AC indication circuit, the power output end of the AC action circuit and the power output end of the AC indication circuit are connected in parallel and then connected to the incoming line end of the AC switch machine, the AC action circuit is used to control the AC switch machine to perform positioning and / or reverse position action, the AC indication circuit is used to indicate the positioning or reverse position state of the AC switch machine, and the indication circuit conversion transformer is used to convert the voltage output by the mobile power supply into the voltage used by the AC indication circuit.

[0033] Furthermore, the mobile power supply can be a rechargeable portable AC 220V power supply, so that the test personnel can carry it for testing conveniently, and the AC switch machine is the switch machine that needs to be tested for operation.

[0034] The AC switch machine is provided with a positioning action circuit, a reverse action circuit, a positioning indication circuit and a reverse position indication circuit, and the positioning action circuit and the reverse action circuit are connected to the three-phase motor of the AC switch machine, wherein the positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit all adopt the internal circuit of the existing AC switch machine (such as the electro-hydraulic switch machine of model ZYJ7), which have overlapping branches, and the combination circuit of the positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit (that is, the internal system circuit of the AC switch machine) has five external line interfaces, which are used for the AC switch machine operation test device to perform positioning and reverse position tests with the positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit of the AC switch machine through the external line interfaces. The positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit of the AC switch machine in the present application adopt the circuit of the existing AC switch machine, so they are not described in detail here.

[0035] When the positioning action circuit is turned on, the three-phase motor drives the mechanical part of the AC switch machine to control the point rail of the track to turn to the positioning state; when the reversing action circuit is turned on, the three-phase motor drives the mechanical part of the AC switch machine to control the point rail to turn to the reversing state; when the positioning indication circuit is turned on, it means that the point rail has completed the positioning action at this time, and by checking the feedback signal of the positioning indication circuit, it is determined whether the point rail is in the standard position of the positioning state (such as whether the point rail is in contact with the basic rail); correspondingly, when the reversing indication circuit is turned on, it means that the point rail has completed the reversing action at this time, and by checking the feedback signal of the reversing indication circuit, it is determined whether the point rail is in the standard position of the reversing state; among them, the positioning state is the normal state of the point rail, and the reversing state is the state of the point rail that is temporarily changed according to needs.

[0036] like Figure 2 As shown, the AC action circuit includes a frequency converter, a first switch K1, a voltmeter and an AC ammeter; wherein the frequency converter is connected to a mobile power source, and the frequency converter is used to convert a first AC voltage (such as Figure 2 The AC 220V voltage in the switch is converted into a second AC voltage (such as Figure 2 The first switch K1 is connected to the power output terminal of the frequency converter and the incoming line terminal of the AC switch. The first switch K1 is used to transmit the second AC voltage to the positioning action circuit or the reverse action circuit of the AC switch so that the AC switch performs a positioning action or a reverse action. The voltmeter and the AC ammeter are arranged on the three-phase branch connected to the frequency converter and the first switch K1. By checking the voltmeter and the AC ammeter, it can be determined whether the state of the three-phase electricity of the AC action circuit is stable.

[0037] Since most of the current AC switch machines have five external line interfaces, that is, the AC switch machine has five incoming line terminals, the present application also sets the number of outgoing line terminals of the AC action circuit and the AC indication circuit to be five.

[0038] Generally, the five incoming terminals of the AC switch are connected to the positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse indication circuit respectively. Therefore, for ease of understanding, Figure 2 As shown, the present application sets the X5 and X2 ports of the AC switch machine to be connected to the positioning action circuit, sets the X3 and X4 ports of the AC switch machine to be connected to the reverse position action circuit, sets the X5 and X3 ports of the AC switch machine to be connected to the reverse position indication circuit, sets the X2 and X4 ports of the AC switch machine to be connected to the positioning indication circuit, and sets the X1 port of the AC switch machine to be the common return line port of the positioning action circuit, the reverse position action circuit, the positioning indication circuit and the reverse position indication circuit.

[0039] Specifically, the first switch K1 is a fixed-reverse action conversion switch. The first switch K1 has three groups of nodes that act simultaneously. Each group of nodes includes a first switch contact K11, a first switch contact K12, and a first switch contact K13. The first switch contact K11 is connected to the positioning action circuit of the AC switch machine ( Figure 2 The first switch contact K12 is empty, and the first switch contact K13 is connected to the reverse action circuit of the AC switch machine ( Figure 2 The first switch K1 is connected to the X3 and X4 ports in the first embodiment. Therefore, the first switch K1 is a three-speed rotary switch. When the first switch K1 rotates to the first switch contact K11, the first switch K1 is placed in the positioning action gear, and the second AC voltage output by the frequency converter is transmitted to the positioning action circuit of the AC switch through the first switch K1, so that the positioning action circuit of the AC switch is turned on, and the AC switch performs a positioning action; when the first switch K1 rotates to the first switch contact K12, the first switch K1 is placed in the neutral gear, so that the second AC voltage output by the frequency converter will not be transmitted to the AC switch, and the AC switch does not perform an action; when the first switch K1 rotates to the first switch contact K13, the first switch K1 is placed in the reverse action gear, and the second AC voltage output by the frequency converter is transmitted to the reverse action circuit of the AC switch through the first switch K1, so that the reverse action circuit of the AC switch is turned on, and the AC switch performs a reverse action.

[0040] like Figure 2 As shown, the AC indication circuit includes a third switch K3, a second switch K2, a first reverse indication relay, a first positioning indication relay, an air switch RD2 (the air switch is an air switch), an air switch RD3 and a resistor R1; wherein the third switch K3 is connected to the indication circuit conversion transformer ( Figure 2The second switch K2 is connected to the secondary side of the indicating circuit conversion transformer, the third switch K3, the first reverse indicating relay, the first positioning indicating relay, and the AC switch, and the second switch K2 is used to control the conduction or disconnection between the third switch K3 and the AC switch; the first reverse indicating relay ( Figure 2 FBJ1 in the figure is connected to the third switch K3, and is connected to the reverse position indicating circuit of the AC switch through the second switch K2. The first reverse position indicating relay is used to indicate the reverse position state of the AC switch; the first positioning indicating relay ( Figure 2 DBJ1 in the relay is connected to the third switch K3, and is connected to the positioning indication circuit of the AC switch machine through the second switch K2. The first positioning indication relay is used to indicate the positioning state of the AC switch machine.

[0041] Specifically, the third switch K3 is a fixed and reverse position indication conversion switch, and the third switch K3 includes a third switch contact K31, a third switch contact K32 and a third switch contact K33. The third switch contact K31 is connected to the positioning indication circuit ( Figure 2 The third switch contact K32 is set to be empty, and the third switch contact K33 is connected to the reverse position indicating circuit ( Figure 2 Therefore, the third switch K3 is a three-speed rotary switch. When the third switch K3 rotates to the third switch contact K31, the third switch K3 is placed in the positioning indication gear. When the second switch K2 is closed, the voltage output by the circuit conversion transformer is transmitted to the positioning indication circuit of the AC switch through the third switch K3, so that the positioning indication circuit of the AC switch is turned on to receive the positioning feedback signal sent by the positioning indication circuit of the AC switch. When the third switch K3 rotates to the third switch contact K32, the third switch K3 is placed in the neutral gear. When the second switch K2 is closed, the voltage output by the circuit conversion transformer is transmitted to the positioning indication circuit of the AC switch through the third switch K3, so that the positioning indication circuit of the AC switch is turned on to receive the positioning feedback signal sent by the positioning indication circuit of the AC switch. When the switch K2 is closed, the output voltage of the circuit conversion transformer will not be transmitted to the AC switch machine, and the feedback signal sent by the AC switch machine cannot be received; when the third switch K3 rotates to the third switch contact K33, the third switch K3 is placed in the reverse position indicating gear. When the second switch K2 is closed, the output voltage of the circuit conversion transformer is transmitted to the reverse position indicating circuit of the AC switch machine through the third switch K3, so that the reverse position indicating circuit of the AC switch machine is turned on, so as to receive the reverse feedback signal sent by the reverse position indicating circuit of the AC switch machine.

[0042] The second switch K2 is a power input switch, and includes a second switch contact K21, a second switch contact K22, a second switch contact K23, a second switch contact K24, and a second switch contact K25; the second switch contact K21 is connected to the secondary side of the circuit conversion transformer and the X1 port of the AC switch; the second switch contact K22 is connected to the third switch contact K31 and the positioning indicating circuit of the AC switch ( Figure 2 The second switch contact K23 is connected to the X4 port of the AC switch machine and is connected to the first positioning indication relay; the second switch contact K24 is connected to the reverse position indication circuit ( Figure 2 The second switch contact K25 is connected to the X3 port of the AC switch machine and the third switch contact K33. Therefore, the second switch K2 is a single-gear switch. When the second switch K2 is disconnected, there is no circuit conduction between the AC switch machine and the indicating circuit conversion transformer; when the second switch K2 is closed and the third switch K3 is not in neutral, there is a circuit conduction between the AC switch machine and the indicating circuit conversion transformer.

[0043] The first reverse position indication relay and the first positioning indication relay are both relays with indicator lights. When the reverse position indication circuit is turned on and receives the reverse position feedback signal sent by the reverse position indication circuit of the AC switch, the coil of the first reverse position indication relay is sucked up and its indicator light lights up, indicating that the AC switch has reached the reverse position state at this time. If the coil of the first reverse position indication relay falls and its indicator light goes out, it means that the reverse position feedback signal sent by the reverse position indication circuit of the AC switch has not been received at this time, and the AC switch has not reached the reverse position state, indicating that a fault has occurred in the AC switch (such as an obstacle between the point rail and the basic rail of the track causing them to not fit closely).

[0044] Correspondingly, when the positioning indication circuit is turned on and the positioning feedback signal sent by the positioning indication circuit of the AC switch is received, the coil of the first positioning indication relay is attracted and its indicator light lights up, indicating that the AC switch has reached the positioning state at this time. If the coil of the first positioning indication relay falls and its indicator light goes out, it means that the positioning feedback signal sent by the positioning indication circuit of the AC switch is not received at this time, the AC switch has not reached the positioning state, and it means that the AC switch has a fault.

[0045] In specific implementation, the AC action circuit and the AC indication circuit are first connected to the incoming line terminal of the AC switch according to a predetermined wiring rule (the above-mentioned port connection method). When the AC switch is positioned, the second switch K2 is turned off, the third switch K3 is placed in neutral, the frequency converter is turned on, and the first switch K1 is placed in the first switch contact K11 to prevent the output voltage of the indication circuit conversion transformer from being transmitted to the AC action circuit, thereby causing damage to the components of the AC action circuit; when the AC switch is reversed, the first switch K1 is placed in the first switch contact K13; after the AC switch completes the positioning action or reverse action, the first switch K1 is placed in neutral, the second switch K2 is closed, and the third switch K3 is rotated to the third switch contact K33 or the third switch contact K31, and by checking the states of the indicator lights of the first reverse indication relay and the first positioning indication relay, it is determined whether the AC switch has reached the reverse state or the positioning state.

[0046] The AC switch machine operation test device of the present invention is mainly used to test the mechanical and electrical parts of the switch machine after it is produced and before it is put into use, so as to ensure that all functions of the equipment are normal and avoid safety hazards after installation. It includes an AC action circuit for controlling the AC switch machine to perform positioning and / or reverse action and an AC indication circuit for indicating the positioning or reverse state of the AC switch machine. The power input end of the AC action circuit and the power input end of the AC indication circuit are both connected to a mobile power supply, and the power output end of the AC action circuit and the power output end of the AC indication circuit are connected in parallel to the incoming line end of the AC switch machine. On the basis of the standard AC switch machine automatic control circuit and indication circuit, a set of simplified manual control circuits with complete detection and test functions are designed and manufactured, and an external mobile power supply is used to provide power for the switch machine, and the mobile power supply is equipped with an outdoor charger. The electric power supply has appropriate size and weight. It utilizes outdoor charging power supply and mutual conversion between power supplies, and is matched with the switch machine control circuit to achieve the purpose of having switch machine test conditions at any time on site. The AC action circuit, AC indication circuit and mobile power supply are independent units, which can be plugged in on site, convenient to carry and use, and get rid of the limitations of the connection method of mechanical fixed power supply and mechanical fixed control circuit. It can realize the action test and status indication of the AC switch machine at the installation and construction site of the switch machine to test the correctness of the rotation and indication circuit of the AC switch machine, and eliminates the process of temporarily pulling power supply or carrying generator during construction. It is easy to carry and realizes self-detection of switch machine equipment, ensuring that each switch machine can be powered on and tested in time after installation on site, ensuring the smooth progress of the subsequent joint adjustment test, ensuring construction safety, improving construction efficiency, and ensuring product quality and reliability.

[0047] On the other hand, through relevant background investigation, the current turnout switch machine test device can only realize the test of a single DC switch machine or AC switch machine. It is impossible to use the same test device to test different types of switch machines, and the functional applicability is not wide. Figure 3 As shown, the present application adds an AC / DC power selection switch and a DC switch machine operation test device on the basis of the structure of the AC switch machine operation test device to form an AC / DC switch machine operation test device.

[0048] Among them, the DC switch operation test device includes a DC action circuit and a DC indication circuit. The DC action circuit is used to control the DC switch to perform positioning and / or reverse action. The DC indication circuit is used to indicate the positioning or reverse state of the DC switch. The DC action circuit and the AC action circuit are both connected to the AC / DC power supply selection switch. The AC / DC power supply selection switch is connected to a mobile power supply. The DC indication circuit and the AC indication circuit are both connected to the secondary side of the indication circuit conversion transformer. The primary side of the indication circuit conversion transformer is connected to a mobile power supply. The DC action circuit and the DC indication circuit are both used to be connected to the incoming line terminal of the DC switch.

[0049] Since the types of switch machines are different, the power supplies used are also different. In order to meet the test needs, the same power supply needs to be converted into different electric energies to power different switch machines, and the use of multiple types of switch machines can be realized according to different switch machine control circuits. Therefore, when the AC / DC switch machine operation test device is used to test the AC switch machine, the gear position of the AC / DC power selection switch is rotated to the port of the AC action circuit, so that the voltage of the mobile power supply is transmitted from the AC action circuit to the AC switch machine, so that the AC switch machine can be operated; when the AC / DC switch machine operation test device is used to test the DC switch machine, the gear position of the AC / DC power selection switch is rotated to the port of the DC action circuit, so that the voltage of the mobile power supply is transmitted from the DC action circuit to the DC switch machine, so that the DC switch machine can be operated.

[0050] Among them, the DC switch machine is also provided with a positioning action circuit, a reverse action circuit, a positioning indication circuit and a reverse position indication circuit, and the positioning action circuit and the reverse action circuit are connected to the motor of the DC switch machine. Among them, the positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit all adopt the internal circuit of the existing DC switch machine (such as the electric switch machine with model ZD6), which have overlapping branches with each other, and the combination circuit of the positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit (that is, the internal system circuit of the DC switch machine) has a number of external line interfaces, which are used for the DC switch machine operation test device to perform positioning and reverse position tests with the positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit of the DC switch machine through the external line interface. The positioning action circuit, the reverse action circuit, the positioning indication circuit and the reverse position indication circuit of the DC switch machine in this application adopt the circuit of the existing DC switch machine, so they are not described in detail here.

[0051] When the positioning action circuit of the DC switch is turned on, the motor drives the mechanical part of the DC switch to control the point rail of the track to turn to the positioning state; when the reversing action circuit of the DC switch is turned on, the motor drives the mechanical part of the DC switch to control the point rail to turn to the reversing state; when the positioning indication circuit of the DC switch is turned on, it means that the point rail has completed the positioning action at this time, and by checking the feedback signal of the positioning indication circuit, it is determined whether the point rail is in the standard position of the positioning state; correspondingly, when the reversing indication circuit of the DC switch is turned on, it means that the point rail has completed the reversing action at this time, and by checking the feedback signal of the reversing indication circuit, it is determined whether the point rail is in the standard position of the reversing state.

[0052] Specifically, Figure 4 As shown, the DC action circuit of the DC switch machine operation test device includes a switching power supply, a fourth switch K4, a DC voltmeter, an air switch RD6 and an air switch RD7; wherein the switching power supply is connected to the mobile power supply, and the switching power supply is a rectifier for converting the first AC voltage (such as Figure 4 The AC 220V voltage in the DC switch is converted into the first DC voltage (such as Figure 4 The fourth switch K4 is connected to the switching power supply through the circuit breaker RD6 and the circuit breaker RD7, and the output end of the fourth switch K4 is connected to the incoming line end of the DC switch. The fourth switch K4 is used to transmit the first DC voltage to the positioning action circuit or the reverse action circuit of the DC switch so that the DC switch performs a positioning action or a reverse action. A DC voltmeter is arranged on the branch connecting the switching power supply and the fourth switch K4. By checking the DC voltmeter, it can be determined whether the state of the output voltage of the switching power supply is stable.

[0053] Most of the current DC switch machines have four or six external line interfaces, that is, the DC switch machine has four or six incoming line terminals. For ease of understanding, this application sets the number of outgoing line terminals of the DC action circuit and the DC indication circuit to six.

[0054] Generally, the six incoming terminals of the DC switch are respectively connected to the positioning action circuit, reverse action circuit, positioning indication circuit and reverse indication circuit of the DC switch. Therefore, for further explanation, Figure 4 As shown, the present application sets the X2 and X6 ports of the DC switch machine to be connected to the positioning action circuit, sets the X1 and X5 ports of the DC switch machine to be connected to the reverse position action circuit, sets the X1 port of the DC switch machine to be connected to the reverse position indication circuit, sets the X2 port of the DC switch machine to be connected to the positioning indication circuit, sets the X4 port of the DC switch machine to be the common return line port of the positioning action circuit and the reverse position action circuit, and sets the X3 port of the DC switch machine to be the common return line port of the positioning indication circuit and the reverse position indication circuit.

[0055] Specifically, the fourth switch K4 is a fixed-reverse action conversion switch. The fourth switch K4 has three groups of nodes that act simultaneously. Each group of nodes includes a fourth switch contact K41, a fourth switch contact K42, and a fourth switch contact K43. The fourth switch contact K41 is connected to the positioning action circuit of the DC switch machine ( Figure 4 The fourth switch contact K42 is empty, and the fourth switch contact K43 is connected to the reverse action circuit of the DC switch machine ( Figure 4 The X1 and X5 ports in the

[0056] Therefore, the fourth switch K4 is a three-speed rotary switch. When the fourth switch K4 rotates to the fourth switch contact K41, the fourth switch K4 is placed in the positioning action gear, and the first DC voltage output by the switching power supply is transmitted to the positioning action circuit of the DC switch through the fourth switch K4, so that the positioning action circuit of the DC switch is turned on, and the DC switch performs a positioning action; when the fourth switch K4 rotates to the fourth switch contact K42, the fourth switch K4 is placed in the neutral gear, so that the first DC voltage output by the switching power supply will not be transmitted to the DC switch, and the DC switch does not act; when the fourth switch K4 rotates to the fourth switch contact K43, the fourth switch K4 is placed in the reverse action gear, and the first DC voltage output by the switching power supply is transmitted to the reverse action circuit of the DC switch through the fourth switch K4, so that the reverse action circuit of the DC switch is turned on, and the DC switch performs a reverse action.

[0057] like Figure 4As shown, the DC indication circuit of the DC switch operation test device includes a fifth switch K5, a sixth switch K6, a second reverse indication relay, a second positioning indication relay, an air switch RD4, an air switch RD5, a resistor R2 and a capacitor C1; wherein the fifth switch K5 is connected to the secondary side of the indication circuit conversion transformer through the air switch RD4 and the resistor R2, the output end of the fifth switch K5 is connected to the incoming line end of the DC switch, and the fifth switch K5 is used to control the conduction or disconnection between the indication circuit conversion transformer and the DC switch; the sixth switch K6 is connected to the secondary side of the indication circuit conversion transformer through the capacitor C1, the output end of the sixth switch K6 is connected to the incoming line end of the fifth switch K5, and the sixth switch K6 is used to transmit the voltage output by the indication circuit conversion transformer to the positioning indication circuit or the reverse indication circuit of the DC switch through the fifth switch K5; the second reverse indication relay ( Figure 4 The FBJ2 in the figure is connected to the secondary side of the indicating circuit conversion transformer through the circuit breaker RD5, and the second reverse position indicating relay is connected to the reverse position indicating circuit of the DC switch through the sixth switch K6 and the fifth switch K5. The second reverse position indicating relay is used to indicate the reverse position state of the DC switch; the second positioning indicating relay ( Figure 4 DBJ2) in the circuit is connected to the secondary side of the indicating circuit conversion transformer through the circuit breaker RD5, and the second positioning indicating relay is connected to the positioning indicating circuit of the DC switch through the sixth switch K6 and the fifth switch K5. The second positioning indicating relay is used to indicate the positioning state of the DC switch.

[0058] Specifically, the fifth switch K5 is a power input switch, and the fifth switch K5 includes a fifth switch contact K51, a fifth switch contact K52, and a fifth switch contact K53; wherein the fifth switch contact K51 and the reverse position indicating circuit of the DC switch machine ( Figure 4 The fifth switch contact K52 is connected to the positioning indication circuit of the DC switch machine ( Figure 4 The fifth switch contact K53 is connected to the common return line port ( Figure 4 The fifth switch contact K53 is also connected to the secondary side of the circuit conversion transformer through the circuit breaker RD4 and the resistor R2.

[0059] Therefore, the fifth switch K5 is a single-gear switch. When the fifth switch K5 is disconnected, there is no circuit conduction between the DC switch and the indicating circuit conversion transformer; when the fifth switch K5 is closed and the sixth switch K6 is not in neutral, there is circuit conduction between the DC switch and the indicating circuit conversion transformer.

[0060] The sixth switch K6 is a fixed reverse position indicating conversion switch. The sixth switch K6 has two groups of nodes that act simultaneously, and each group of nodes includes a sixth switch contact K61, a sixth switch contact K62 and a sixth switch contact K63; the sixth switch contact K61 is connected to the fifth switch contact K51, the sixth switch contact K62 is empty, the sixth switch contact K63 is connected to the fifth switch contact K52, and the second reverse position indicating relay is set on the branch between the sixth switch contact K61 and the secondary side of the indicating circuit conversion transformer, and the second positioning indicating relay is set on the branch between the sixth switch contact K63 and the secondary side of the indicating circuit conversion transformer.

[0061] Therefore, the sixth switch K6 is a three-speed rotary switch. When the sixth switch K6 rotates to the sixth switch contact K61, the sixth switch K6 is placed in the reverse position indicating gear position. When the fifth switch K5 is closed, the voltage output by the circuit conversion transformer is transmitted to the reverse position indicating circuit of the DC switch through the sixth switch K6, so that the reverse position indicating circuit of the DC switch is turned on to receive the reverse position feedback signal sent by the reverse position indicating circuit of the DC switch; when the sixth switch K6 rotates to the sixth switch contact K62, the sixth switch K6 is placed in the neutral position. When switch K5 is closed, the output voltage of the circuit conversion transformer will not be transmitted to the DC switch, and the feedback signal sent by the DC switch cannot be received; when the sixth switch K6 rotates to the sixth switch contact K63, the sixth switch K6 is placed in the positioning indication gear. When the fifth switch K5 is closed, the output voltage of the circuit conversion transformer is transmitted to the positioning indication circuit of the DC switch through the sixth switch K6, so that the positioning indication circuit of the DC switch is turned on to receive the positioning feedback signal sent by the positioning indication circuit of the DC switch.

[0062] The second reverse position indication relay and the second positioning indication relay are both relays with indicator lights. When the reverse position indication circuit is turned on and receives the reverse position feedback signal sent by the reverse position indication circuit of the DC switch, the coil of the second reverse position indication relay is attracted and its indicator light lights up, indicating that the DC switch has reached the reverse position state at this time. If the coil of the second reverse position indication relay falls and its indicator light goes out, it means that the reverse position feedback signal sent by the reverse position indication circuit of the DC switch has not been received at this time, and the DC switch has not reached the reverse position state, indicating that a fault has occurred in the DC switch.

[0063] Correspondingly, when the positioning indication circuit is turned on and the positioning feedback signal sent by the positioning indication circuit of the DC switch is received, the coil of the second positioning indication relay is attracted and its indicator light lights up, indicating that the DC switch has reached the positioning state at this time. If the coil of the second positioning indication relay falls and its indicator light goes out, it means that the positioning feedback signal sent by the positioning indication circuit of the DC switch is not received at this time, the DC switch has not reached the positioning state, and a fault has occurred in the DC switch.

[0064] When the DC switch operation test device is implemented, the DC action circuit and the DC indication circuit are first connected to the incoming line terminal of the DC switch according to the predetermined wiring rules (the above-mentioned port connection method). When the DC switch is positioned, the fifth switch K5 is turned off, the sixth switch K6 is placed in neutral, the switch power is turned on, and the fourth switch K4 is placed in the fourth switch contact K41 to prevent the output voltage of the indication circuit conversion transformer from being transmitted to the DC action circuit, thereby causing damage to the components of the DC action circuit; when the DC switch is reversed, the fourth switch K4 is placed in the fourth switch contact K43; after the DC switch completes the positioning action or reverse action, the fourth switch K4 is placed in neutral, the fifth switch K5 is closed, and the sixth switch K6 is rotated to the sixth switch contact K61 or the sixth switch contact K63, and by checking the states of the indicator lights of the second reverse indication relay and the second positioning indication relay, it is determined whether the DC switch has reached the reverse state or the positioning state.

[0065] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0066] In an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.

[0067] It will be appreciated by those skilled in the art that various aspects of the present invention may be implemented as a system, method or program product. Therefore, various aspects of the present invention may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein as a "circuit", "module" or "system".

[0068] The electronic device according to this embodiment of the present invention is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0069] The electronic device is presented in the form of a general-purpose computing device. The components of the electronic device may include, but are not limited to: the at least one processor mentioned above, the at least one storage device mentioned above, and a bus connecting different system components (including storage devices and processors).

[0070] The storage stores program codes, which can be executed by the processor, so that the processor executes the steps according to various exemplary embodiments of the present invention described in the above “Exemplary Method” section of this specification.

[0071] The memory may include readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory, and may further include read only memory (ROM).

[0072] The storage may also include a program / utility having a set (at least one) of program modules, such program modules including but not limited to: an operating system, one or more application programs, other program modules and program data, each of which or some combination may include the implementation of a network environment.

[0073] The bus may represent one or more of several types of bus structures including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures.

[0074] The electronic device may also communicate with one or more external devices (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the electronic device, and / or any device that enables the electronic device to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface. Furthermore, the electronic device may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter.

[0075] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0076] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the above method of the present specification is stored. In some possible implementations, various aspects of the present invention can also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to various exemplary embodiments of the present invention described in the above "Exemplary Method" section of the present specification.

[0077] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0078] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0079] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0080] Program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., through the Internet using an Internet service provider).

[0081] In addition, the above-mentioned figures are only schematic illustrations of the processes included in the method according to an exemplary embodiment of the present invention, and are not intended to be limiting. It is easy to understand that the processes shown in the above-mentioned figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0082] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0083] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An AC switch machine operation test device, characterized in that: include: AC action circuit, used to control the AC switch machine to perform positioning and / or reverse action; An AC indicating circuit, used for indicating the positioning or reverse position state of the AC switch machine; The power input end of the AC action circuit and the power input end of the AC indication circuit are both connected to a mobile power source, and the power output end of the AC action circuit and the power output end of the AC indication circuit are connected in parallel to the incoming line end of the AC switch machine.

2. The AC switch machine operation test device according to claim 1, characterized in that: The AC display circuit is connected to the mobile power source via a display circuit conversion transformer, the primary side of the display circuit conversion transformer is connected to the mobile power source, and the secondary side of the display circuit conversion transformer is connected to the AC display circuit.

3. The AC switch machine operation test device according to claim 2, characterized in that: The AC action circuit comprises: A frequency converter connected to the mobile power source, and used for converting a first AC voltage output by the mobile power source into a second AC voltage for operating the AC switch machine; The first switch K1 is connected to the frequency converter and the AC switch machine, and is used for transmitting the second AC voltage to the positioning action circuit or the reverse action circuit of the AC switch machine, so that the AC switch machine performs positioning action or reverse action.

4. The AC switch machine operation test device according to claim 3, characterized in that: The AC representation circuit comprises: The third switch K3 is connected to the secondary side of the indicating circuit conversion transformer and is used to transmit the voltage output by the indicating circuit conversion transformer to the positioning indicating circuit or the reverse indicating circuit of the AC switch machine; The second switch K2 is connected to the secondary side of the said circuit conversion transformer, the said third switch K3, and the said AC switch machine, and is used to control the conduction or disconnection between the said third switch K3 and the said AC switch machine; A first reverse position indicating relay is connected to the third switch K3 and the reverse position indicating circuit of the AC switch machine, and is used to indicate the reverse position state of the AC switch machine; The first position indicating relay is connected to the third switch K3 and the position indicating circuit of the AC point switch, and is used to indicate the position state of the AC point switch.

5. The AC switch machine operation test device according to claim 4, characterized in that: The first switch K1 includes a first switch contact K11, a first switch contact K12 and a first switch contact K13, wherein the first switch contact K11 is connected to the positioning action circuit of the AC switch machine, the first switch contact K12 is empty, and the first switch contact K13 is connected to the reverse action circuit of the AC switch machine.

6. The AC switch machine operation test device according to claim 5, characterized in that: The third switch K3 includes a third switch contact K31, a third switch contact K32 and a third switch contact K33. The third switch contact K31 is connected to the positioning indication circuit of the AC switch machine, the third switch contact K32 is empty, and the third switch contact K33 is connected to the reverse position indication circuit of the AC switch machine.

7. The AC switch machine operation test device according to claim 6, characterized in that: The second switch K2 includes a second switch contact K21, a second switch contact K22, a second switch contact K23, a second switch contact K24 and a second switch contact K25. The second switch contact K21 is connected to the secondary side of the indicating circuit conversion transformer and the AC switch. The second switch contact K22 and the second switch contact K23 are connected to the third switch contact K31 and the positioning indicating circuit of the AC switch. The second switch contact K24 and the second switch contact K25 are connected to the third switch contact K33 and the reverse position indicating circuit of the AC switch.

8. The AC switch machine operation test device according to claim 7, characterized in that: The first reverse position indicating relay is arranged on a branch between the third switch contact K33 and the second switch contact K24.

9. The AC switch machine operation test device according to claim 8, characterized in that: The first positioning indicates that the relay is arranged on a branch between the third switch contact K31 and the second switch contact K23.

10. The AC switch machine operation test device according to claim 9, characterized in that: A voltmeter and an AC ammeter are provided on the three-phase branch connecting the frequency converter and the first switch K1.

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