Switch machine simulation test device

Abstract

The invention belongs to the technical field of railway testing, and particularly relates to a point switch simulation test device which comprises a change-over switch, a turnout test unit, a positioning control button and an anti-position control button. When the change-over switch is switched to the position of the electric turnout, the turnout test unit is electrically connected with the electric switch, and when the change-over switch is switched to the position of the electro-hydraulic turnout, the turnout test unit is electrically connected with the electro-hydraulic switch; the positioning control button and the anti-position control button control the electric switch machine and the electro-hydraulic switch machine to complete turnout positioning and turnout anti-position operation through the turnout test unit, the problem that in the prior art, the procedure of replacing the switch machine is tedious is solved, and safe application of the switch machine on the track is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of railway testing technology, specifically relating to a switch machine simulation test device. Background Technology

[0002] When railway signaling professionals perform routine maintenance or group replacement of turnout switch machines on the track, the long distances the switch machines are transported to the site necessitate a fixed-position and reverse-positioning test before the new switch machine is installed to ensure its proper operation. This test requires applying for a track maintenance window before the new switch machine is installed. The on-site test requires disconnecting the existing switch machine's wiring and using the existing turnout operating circuit to operate the new switch machine. After the test, the existing equipment must be restored. This cumbersome and inefficient process causes significant inconvenience for the on-site signaling professionals. Summary of the Invention

[0003] To address the cumbersome process of replacing switch machines in existing technologies, a switch machine simulation test device is provided.

[0004] A switch machine simulation test device includes: a changeover switch, a turnout test unit, a positioning control button, and a reversing control button;

[0005] When the selector switch is turned to the electric turnout position, the turnout test unit is electrically connected to the electric switch machine. The turnout test unit is used to convert the 220V AC voltage input from the external power source into 220V DC voltage and transmit the 220V DC voltage to the electric switch machine. The positioning control button controls the electric switch machine motor to rotate forward through the turnout test unit, so that the turnout is in the positioning position. The reversing control button controls the electric switch machine motor to rotate in the reverse position through the turnout test unit, so that the turnout is in the reversing position.

[0006] When the selector switch is turned to the electro-hydraulic turnout position, the turnout test unit is electrically connected to the electro-hydraulic switch machine. The turnout test unit is used to convert the 220V AC voltage input from the external power source into 380V AC voltage and transmit the 380V AC voltage to the electro-hydraulic switch machine. The positioning control button controls the motor of the electro-hydraulic switch machine to rotate forward through the turnout test unit, so that the turnout is moved to the positioning position. The reversing control button is used to control the motor of the electro-hydraulic switch machine to rotate in the reverse direction through the turnout test unit, so that the turnout is moved to the reversing position.

[0007] The beneficial effects of this application are as follows: The switch machine simulation test device of this application eliminates the bulky relay assembly and is easy to carry; the device can select different switch positions according to the type of switch machine, and is suitable for various models of electric switch machines and electro-hydraulic switch machines; the positioning control button and the reversing control button control the forward and reverse rotation of the switch machine motor to realize the turnout positioning and reversing operation; the switch machine simulation test device of this application can realize the positioning and reversing operation test before the switch machine is put on the track, ensuring the safe operation of the switch machine on the track. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the switch machine simulation test device according to a specific embodiment of this application when the switch is turned to the electric turnout position;

[0009] Figure 2 A schematic diagram of the switch machine simulation test device according to a specific embodiment of this application when the switch is turned to the electro-hydraulic turnout position;

[0010] Figure 3 The circuit diagram shows the switch machine simulation test device according to a specific embodiment of this application. Detailed Implementation

[0011] The following will refer to the appendices in the embodiments of the present invention. Figure 1 To be continued Figure 3 This description explains the embodiments of the present invention, providing a clear and complete description of the technical solutions in these embodiments:

[0012] A switch machine simulation test device includes: a changeover switch, a turnout test unit, a positioning control button, and a reversing control button;

[0013] When the selector switch is turned to the electric turnout position, the turnout test unit is electrically connected to the electric switch machine. The turnout test unit is used to convert the 220V AC voltage input from the external power source into 220V DC voltage and transmit the 220V DC voltage to the electric switch machine. The positioning control button controls the electric switch machine motor to rotate forward through the turnout test unit, so that the turnout is in the positioning position. The reversing control button controls the electric switch machine motor to rotate in the reverse position through the turnout test unit, so that the turnout is in the reversing position.

[0014] When the selector switch is turned to the electro-hydraulic turnout position, the turnout test unit is electrically connected to the electro-hydraulic switch machine. The turnout test unit is used to convert the 220V AC voltage input from the external power source into 380V AC voltage and transmit the 380V AC voltage to the electro-hydraulic switch machine. The positioning control button controls the motor of the electro-hydraulic switch machine to rotate forward through the turnout test unit, so that the turnout is moved to the positioning position. The reversing control button is used to control the motor of the electro-hydraulic switch machine to rotate in the reverse direction through the turnout test unit, so that the turnout is moved to the reversing position.

[0015] Specifically, when the switch machine simulation test device tests the electric switch machine, the changeover switch is switched to the electric turnout position, the AC 220V mains voltage is rectified into DC 220V voltage, and the intermediate relay contacts are used to control the current direction, thereby driving the switch machine motor to switch between the positioning and reverse positions.

[0016] When the switch machine simulation test device tests the electro-hydraulic switch machine, the changeover switch is turned to the electro-hydraulic turnout position. The AC 220V mains voltage is converted and filtered to output a three-phase 380V voltage. The phase sequence of the power supply is controlled by the intermediate relay contacts, thereby driving the electro-hydraulic switch machine motor to switch between fixed and reverse positions.

[0017] Furthermore, the turnout test unit includes a power switching module, a power frequency conversion module, a power filtering module, a phase sequence conversion module, a control circuit module, and a control output module;

[0018] When the selector switch is turned to the electric turnout position, the power switching module transmits the 220V AC voltage input from the external power source to the power rectification module. The power rectification module converts the input 220V AC voltage into 220V DC voltage and transmits the 220V DC voltage to the control circuit. The control circuit transmits the input 220V DC voltage to the control output module, and the control output module transmits the input 220V DC voltage to the electric switch machine.

[0019] When the selector switch is turned to the electro-hydraulic switch position, the power switching module transmits the 220V AC voltage input from the external power supply to the power frequency conversion module. The power frequency conversion module converts the input 220V AC voltage into a 380V AC square wave voltage and inputs the 380V AC square wave voltage to the power filtering module. The power filtering module converts the input 380V AC square wave voltage into a 380V AC sine wave voltage and transmits the 380V AC sine wave voltage to the phase sequence conversion module. The phase sequence conversion module performs phase sequence conversion on the input 380V AC sine wave voltage and transmits the converted 380V AC sine wave voltage to the control circuit module. The control circuit module transmits the received phase sequence converted 380V AC sine wave voltage to the control output module. The control output module transmits the received phase sequence converted 380V AC sine wave voltage to the electro-hydraulic switch machine.

[0020] Specifically, such as Figure 2 As shown, when the selector switch is turned to the electric turnout position, the turnout test unit is electrically connected to the external power supply and the electric switch machine. The turnout test unit converts the external power supply into a 220V DC voltage suitable for the electric switch machine.

[0021] like Figure 3As shown, when the switch is turned to the electro-hydraulic turnout position, the turnout test unit is electrically connected to the external power supply and the electro-hydraulic switch machine. The turnout test unit converts the external power supply into a 380V AC voltage suitable for the electro-hydraulic switch machine.

[0022] Furthermore, when the selector switch is turned to the electric turnout position, the positioning control button is used to generate a positioning control command and send the positioning control command to the control circuit module. The control circuit module controls the electric switch machine motor to rotate forward according to the received positioning control command, so that the turnout is in the positioning position; the reversing control button is used to generate a reversing control command and send the reversing control command to the control circuit module. The control circuit module controls the electric switch machine motor to rotate in the reverse direction according to the received reversing control command, so that the turnout is in the reversing position.

[0023] When the selector switch is turned to the electro-hydraulic turnout position, the positioning control button generates a positioning control command and sends it to the control circuit module. Based on the received positioning control command, the control circuit module controls the phase sequence conversion module to transmit the input 380V AC sinusoidal voltage according to the set forward phase sequence to the control circuit module. The control circuit module then transmits the received forward-phase 380V AC sinusoidal voltage to the control output module, which in turn transmits it to the electro-hydraulic switch machine. The motor of the electric switch machine then rotates forward. The switch is moved to the correct position. The reverse position control button generates a reverse position control command and sends it to the control circuit module. The control circuit module controls the phase sequence conversion module to transmit the input 380V AC sinusoidal voltage to the control circuit module according to the set reverse phase sequence. The control circuit module transmits the received reverse phase sequence 380V AC sinusoidal voltage to the control output module. The control output module transmits the received reverse phase sequence 380V AC sinusoidal voltage to the electro-hydraulic switch machine. The motor of the electro-hydraulic switch machine rotates in the reverse direction, moving the switch to the reverse position.

[0024] Specifically, when the selector switch is turned to the electric turnout position, the positioning and reversing operation buttons control the direction of the electric turnout motor's rotation by controlling the direction of the current input to the electric turnout, thereby achieving turnout positioning and reversing; when the selector switch is turned to the electro-hydraulic turnout position, the positioning and reversing operation buttons control the direction of the electro-hydraulic turnout motor's rotation by controlling the phase sequence of the voltage input to the electro-hydraulic turnout, thereby achieving turnout positioning and reversing.

[0025] Furthermore, a switch machine simulation test device also includes a positioning indicator light and a reverse position indicator light;

[0026] The positioning indicator light is activated and illuminates after the turnout switch is moved to the positioning position.

[0027] The reverse position indicator light is activated and illuminates when the turnout is switched to the reverse position.

[0028] The positioning indicator and the reverse position indicator are LEDs of different colors.

[0029] Specifically, after the electric switch machine and the electro-hydraulic switch machine complete the turnout positioning and reversal, the switch machine simulation test device provides the corresponding turnout indication.

[0030] Furthermore, the external power source is a generator or mains power.

[0031] Specifically, in actual operation, a generator or mains power can be selected to provide power to the switch machine simulation test device, depending on the actual situation.

[0032] Furthermore, the electric switch machine is a ZD6, ZD9, ZY7, or ZYJ7 model electric switch machine.

[0033] In specific implementation, the circuit diagram of the switch machine simulation test device is as follows: Figure 3 As shown, the turnout test unit includes a power switching module, a power frequency conversion module, a power filtering module, a phase sequence conversion module, a control circuit module, and a control output module. In the diagram, DQJ is a positioning start relay, model JZC1-44; DQJF is a positioning start repeater relay; FQJ is a reverse position start relay, model JZC1-44; FQJF is a reverse position start repeater relay; DWJ is a positioning operation relay, model JZC1-44; FWJ is a reverse position operation relay, model JZC1-44; ZHK is a function conversion relay, model JZC1-44; DWA is a positioning control button, a self-resetting button with a 12V indicator light; FWA is a reverse position control button, a self-resetting button with a 12V indicator light; QA is a start control button, a self-resetting button with a 12V indicator light; DL1a is a first electro-hydraulic current microswitch; DL1b is a second electro-hydraulic current microswitch; DL1c is a third electro-hydraulic current microswitch; DL2... QHA is a micro switch for electric current, ZHA is a phase sequence switch button, and DL is a function conversion knob. 1 / 2 F is the total current repeater relay, S / N is the Hall magnet north and south pole detection module, B is the 220-110, 12V transformer, and Z1 is the 700V 10A rectifier bridge;

[0034] During the 2024 signal maintenance workshop's group replacement of turnouts, the switch machine simulation test device conducted offline tests on 140 switch machines in 70 turnouts across 8 stations. Problems with the turnouts were rectified in a timely manner, ensuring the smooth progress of the construction task.

[0035] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A switch machine simulation test apparatus, characterized by, The switch, the turnout test unit, the positioning control button and the reverse position control button are included. When the switch is turned to the electric turnout position, the turnout test unit is electrically connected with the electric switch machine, the turnout test unit is used for converting 220V AC voltage input by an external power supply into 220V DC voltage, and transmitting the 220V DC voltage to the electric switch machine; the positioning control button controls the motor of the electric switch machine to rotate in the forward direction through the turnout test unit, so that the turnout is pulled to the positioning; the reverse position control button controls the motor of the electric switch machine to rotate in the reverse direction through the turnout test unit, so that the turnout is pulled to the reverse position. When the switch is turned to the electric-hydraulic turnout position, the turnout test unit is electrically connected with the electric-hydraulic switch machine, the turnout test unit is used for converting 220V AC voltage input by an external power supply into 380V AC voltage, and transmitting the 380V AC voltage to the electric-hydraulic switch machine; the positioning control button controls the motor of the electric-hydraulic switch machine to rotate in the forward direction through the turnout test unit, so that the turnout is pulled to the positioning. The reverse position control button is used for controlling the motor of the electric-hydraulic switch machine to rotate in the reverse direction through the turnout test unit, so that the turnout is pulled to the reverse position. The turnout test unit includes a power supply switching module, a power supply frequency conversion module, a power supply filtering module, a phase sequence conversion module, a control circuit module and a control output module.

2. The switch machine simulation test apparatus of claim 1, wherein: When the switch is turned to the electric turnout position, the power supply switching module transmits 220V AC voltage input by an external power supply to the power supply rectification module, the power supply rectification module converts the input 220V AC voltage into 220V DC voltage, and transmits the 220V DC voltage to the control circuit, the control circuit transmits the input 220V DC voltage to the control output module, and the control output module transmits the input 220V DC voltage to the electric switch machine. When the switch is turned to the electric-hydraulic turnout position, the power supply switching module transmits 220V AC voltage input by an external power supply to the power supply frequency conversion module, the power supply frequency conversion module converts the input 220V AC voltage into 380V AC square wave voltage, and inputs the 380V AC square wave voltage to the power supply filtering module, the power supply filtering module converts the input 380V AC square wave voltage into 380V AC sine wave voltage, and transmits the 380V AC sine wave voltage to the phase sequence conversion module, the phase sequence conversion module converts the input 380V AC sine wave voltage in phase sequence and transmits the converted 380V AC sine wave voltage to the control circuit module, the control circuit module transmits the received phase sequence converted 380V AC sine wave voltage to the control output module, and the control output module transmits the received phase sequence converted 380V AC sine wave voltage to the electric-hydraulic switch machine.

3. The switch machine simulation test device according to claim 2, wherein when the switch is turned to the electric turnout position, the positioning control button is used for generating a positioning control instruction and sending the positioning control instruction to the control circuit module, and the control circuit module controls the motor of the electric switch machine to rotate in the forward direction according to the received positioning control instruction, so that the turnout is pulled to the positioning. ​ ​ The reverse position operating button is used to generate a reverse position operating instruction and send the reverse position operating instruction to the control circuit module, and the control circuit module controls the motor of the electric switch machine to rotate reversely according to the received reverse position operating instruction, so that the turnout is turned to the reverse position; When the switch is turned to the electro-hydraulic turnout position, the positioning operating button is used to generate a positioning operating instruction and send the positioning operating instruction to the control circuit module, and the control circuit module controls the phase sequence conversion module to transmit the input 380V AC sine wave voltage to the control circuit module according to the set forward phase sequence according to the received positioning operating instruction, the control circuit module transmits the received forward phase sequence 380V AC sine wave voltage to the control output module, the control output module transmits the received forward phase sequence 380V AC sine wave voltage to the electro-hydraulic switch machine, and the motor of the electric switch machine rotates forward, so that the turnout is turned to the positioning position. The reverse position operating button is used to generate a reverse position operating instruction and send the reverse position operating instruction to the control circuit module, and the control circuit module controls the phase sequence conversion module to transmit the input 380V AC sine wave voltage to the control circuit module according to the set reverse phase sequence according to the received reverse position operating instruction, the control circuit module transmits the received reverse phase sequence 380V AC sine wave voltage to the control output module, the control output module transmits the received reverse phase sequence 380V AC sine wave voltage to the electro-hydraulic switch machine, and the motor of the electro-hydraulic switch machine rotates reversely, so that the turnout is turned to the reverse position.

4. The switch machine simulation test apparatus of claim 1, wherein: The positioning indicator light and the reverse position indicator light are further included. The positioning indicator light is used to turn on and emit light after the turnout is turned to the positioning position. The reverse position indicator light is used to turn on and emit light after the turnout is turned to the reverse position. The positioning indicator light and the reverse position indicator light are different color light emitting diodes.

5. The switch machine simulation test apparatus of claim 1, wherein: The external power supply is a generator or commercial power.

6. The switch machine simulation test apparatus of claim 1, wherein: The electric switch machine is a ZD6 type, ZD9 type, ZY7 type or ZYJ7 type electric switch machine.

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