A turnout simulation test detection system

Abstract

The present invention relates to the technical field of railway turnout testing, specifically a turnout simulation test detection system, including a DC turnout detection circuit and an AC turnout detection circuit, which are used to perform turnout simulation test detection on DC turnouts and AC turnouts respectively; the DC turnout detection circuit is composed of four DC branches, a DC positioning reverse position indicator light, a first rectifier diode, a high and low frequency trigger relay, and a DC load bulb. The turnout simulation test detection system involved in the present invention integrates the simulation tests of the two most commonly used turnouts on the railway, and can basically simulate the test of the turnouts on the railway; it can meet the simultaneous test of the action and indication of the turnout, reduce the time of repeated operations, and the wiring is connected in sequence according to the position, which can effectively prevent the reverse line and reduce errors, thereby improving the test efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of railway turnout testing, in particular to a turnout simulation test detection system. Background Art

[0002] Railway turnouts are important equipment outdoors at stations. They are switching devices that allow trains to switch from one line to another. The direction in which the turnouts are opened determines the direction of the train and plays a very important role in the safe operation of the train.

[0003] At present, stations generally use DC and three-phase AC turnouts. When testing the turnout control system, especially in renovated stations, there are many constraints on the outdoor turnout equipment. In particular, during the use of the station's outdoor equipment, in order to ensure railway transportation, it is difficult to meet the requirements of indoor new control system testing. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a turnout simulation test detection system to solve the problem that the turnout simulation test is cumbersome and inefficient.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a turnout simulation test detection system, including a DC turnout detection circuit and an AC turnout detection circuit, for performing turnout simulation test detection on the DC turnout and the AC turnout respectively;

[0006] The DC turnout detection circuit is composed of four DC branches, a DC positioning and reverse position indicator light, a first rectifier diode, a high and low frequency trigger relay, and a DC load bulb; the four DC branches include a first DC branch, a second DC branch, a third DC branch, and a fourth DC branch; the DC load bulb is mounted on the fourth DC branch of the branch, and is connected to the first DC branch or the second DC branch through a high and low frequency trigger relay, and is used to switch the DC turnout indicating the circuit positioning or reverse position;

[0007] The AC turnout detection circuit package consists of five AC branches, an AC positioning and reverse position indicator light, a second rectifier diode, high and low frequency trigger relays, a resistor, and an AC load bulb; the five AC branches include a first AC branch, a second AC branch, a third AC branch, a fourth AC branch, and a fifth AC branch; three groups of AC load bulbs are provided, and the three groups of AC load bulbs are respectively switched and mounted on the first AC branch, the third AC branch, and the fourth AC branch or on the first AC branch, the second AC branch, and the fifth AC branch through high and low frequency trigger relays, and are used to switch the AC turnout to indicate the circuit positioning or reverse position.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the DC load bulb is connected to a DC voltmeter; and the three groups of AC load bulbs are connected to AC voltmeters in pairs.

[0010] Furthermore, the fourth DC branch line and the first AC branch line are both provided with stop switches.

[0011] Furthermore, the DC load bulb power is 150W, and the DC load bulb power is 200W.

[0012] Furthermore, a four-pole terminal block is installed at the incoming end of the four-way DC branch line; and a five-pole terminal block is installed at the incoming end of the five-way AC branch line.

[0013] Furthermore, both the third DC branch line and the second DC branch line are provided with a light-controlled switch.

[0014] The beneficial effects of the present invention are as follows: the turnout simulation test detection system involved in the present invention integrates the simulation tests of the two most commonly used turnouts on the railway, and can basically simulate and test the turnouts on the railway; it can meet the simultaneous test of the action and expression of the turnout, reduce the repeated operation time, and the wiring is connected in sequence according to the position, which can effectively prevent the reversal of the line and reduce errors, thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The circuit schematic diagram of the DC turnout of the present invention;

[0016] Figure 2 The circuit schematic diagram of the AC turnout of the present invention;

[0017] Figure 3 The circuit schematic diagram of the DC turnout detection circuit of the present invention;

[0018] Figure 4 The circuit schematic diagram of the AC turnout detection circuit of the present invention;

[0019] Figure 5 A schematic diagram of a circuit for switching a DC turnout to a reverse position according to the present invention;

[0020] Figure 6 A schematic diagram of a circuit for switching a DC turnout of the present invention to a positioning state;

[0021] Figure 7 It is a circuit diagram of the three-phase AC turnout of the present invention being switched to the reverse position;

[0022] Figure 8 A schematic diagram of a circuit for switching a three-phase AC turnout to a fixed position according to the present invention. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0025] In the past, when testing turnout equipment, the turnout circuit needed to be manually connected to a diode in the distribution board. The DC turnout was controlled by a four-wire system, and the AC turnout was controlled by a five-wire system. The circuit principle of the existing turnout can be found in Figure 1 and Figure 2 The DC ZD6 turnout is indicated by hanging diodes on the X1, X2, and X3 lines; the AC three-phase five-wire turnout is to add sealed wires on X1, X4, and X5, and then hang diodes on X1, X2, and X3, and then operate the turnout to check the turnout's fixed and reverse indication. After the circuit test is completed, the diodes and the sealed wires must be removed and the turnout action circuit must be tested again. This test method requires the wires to be removed and reversed, and there are still the following problems:

[0026] First, the action and indication of the test turnout must be tested separately, which not only takes time to repeat the operation but also easily leads to wiring errors. Second, the test action and indication circuit cannot meet the consistency, resulting in the equipment status being out of sync, and the test being not intuitive and thorough. Third, during the test action, the action power cannot be automatically cut off, and there is a risk of electric shock when switching lines back and forth. In this regard, the present invention provides a turnout simulation test detection system to solve the above problems.

[0027] The embodiments of the present invention are as follows

[0028] like Figure 1 and Figure 2 As shown, the turnout simulation test detection system designed by the present invention includes two major parts: a DC turnout detection circuit and an AC turnout detection circuit, which are used to perform turnout simulation test detection on the DC turnout and the AC turnout respectively.

[0029] Specific reference Figure 3The DC turnout detection circuit consists of four DC branches, a DC positioning and reversing indicator light, a first rectifier diode, a high and low frequency trigger relay, and a DC load bulb; the four DC branches include a first DC branch X1, a second DC branch X2, a third DC branch X3, and a fourth DC branch X4; the DC load bulb HL is mounted on the fourth DC branch X4, and is connected to the first DC branch X1 or the second DC branch X2 through a high and low frequency trigger relay 1, and the high and low frequency trigger relay 1 is used to switch the first DC branch X1 or the second DC branch X2 to realize the positioning and reversing of the DC turnout indication circuit.

[0030] The DC load bulb HL is also connected to a DC voltmeter B1. When the load bulb HL is lit, the operating voltage of the DC turnout is obtained through the DC voltmeter B1.

[0031] Specific reference Figure 4 The AC turnout detection circuit package consists of five AC branch lines, an AC positioning reverse indicator light, a second rectifier diode, high and low frequency trigger relays, resistors, and AC load bulbs. The resistance parameter is 300Ω / 50W; the five AC branch lines include the first AC branch line X1, the second AC branch line X2, the third AC branch line X3, the fourth AC branch line X4 and the fifth AC branch line X5; there are three groups of AC load bulbs, which are numbered as AC load bulbs L1, AC load bulbs L2 and AC load bulbs L3. Among them, the AC load bulb L1, the AC load bulb L2 and the AC load bulb L3 are star-connected and mounted on the first AC branch line X1, the third AC branch line X3 and the fourth AC branch line X4 respectively. The AC load bulb L2 switches the third AC branch line X3 or the fifth AC branch line X5 through a high-low electrical frequency trigger relay 1 to realize the circuit positioning and reverse positioning. The AC load bulb L3 is connected to the fourth AC branch line X4 or the second AC branch line X2 through another high-low electrical frequency trigger relay 2 to realize the positioning or reverse positioning of the AC turnout indication circuit.

[0032] An AC voltmeter A is provided between the AC load bulb L1 and the AC load bulb L2, an AC voltmeter B is provided between the AC load bulb L2 and the AC load bulb L3, and an AC voltmeter C is provided between the AC load bulb L1 and the AC load bulb L3. The voltages at three points are respectively detected by three sets of AC voltmeters to obtain the operating voltage of the DC turnout.

[0033] The fourth DC branch line X4 and the first AC branch line X1 are both equipped with stop switches. By disconnecting the turnout action circuit through the stop switch, not only can the test time be saved, but also electric shock can be prevented when the line is taken. The third DC branch line X3 and the second DC branch line X2 are both equipped with light-controlled switches, so that when the load bulb is lit, the indication circuit is disconnected to prevent the action power supply from being connected and burning the rectifier tube.

[0034] The DC positioning reverse indicator light and the AC positioning reverse indicator light are both light emitting diodes, which are used to display the positioning and reverse direction of the circuit.

[0035] Both DC load bulbs and AC load bulbs can be small aromatherapy bulbs. The small aromatherapy bulbs in the DC turnout detection circuit are 150W, and the small aromatherapy bulbs in the AC turnout detection circuit are 200W. The small aromatherapy bulbs are used to replace the turnout switch motor to intuitively simulate the turnout test.

[0036] The turnout simulation test detection system designed by the present invention can simultaneously meet the simulation detection requirements of AC turnouts and DC turnouts by integrating a DC turnout detection circuit and an AC turnout detection circuit. In order to facilitate access to the corresponding branch lines of the turnout to be tested, a four-post terminal block can be installed at the incoming end of the four-way DC branch line, and a five-post terminal block can be installed at the incoming end of the five-way AC branch line. The branch lines on the branching disk along the turnout are connected through the four-post terminal block or the five-post terminal block to quickly complete the line docking, and the test process will not switch back and forth due to the reverse position operation.

[0037] When conducting a turnout test, when the high and low frequency electric trigger relays are in position, the DC positioning reverse position indicator light or the AC positioning reverse position indicator light in the DC turnout detection circuit or the AC turnout detection circuit lights up green and is consistent with the indoor indication circuit. Then the control console controls the turnout to the reverse position, and the DC load bulb or the AC load bulb is lit; after the action is completed, adjust the high and low frequency electric trigger relays to the reverse position. At this time, the DC positioning reverse position indicator light or the AC positioning reverse position indicator light is red. When the control console controls the turnout to the position, the DC load bulb or the AC load bulb is lit. After the action is completed, adjust the high and low frequency electric trigger relays to the position. At this time, the DC positioning reverse position indicator light or the AC positioning reverse position indicator light is green, indicating that the turnout test and the indication circuit test are completed.

[0038] In this regard, the present invention will separately explain the turnout simulation test detection methods for DC turnouts and AC turnouts, wherein the DC turnout detection circuit and the AC turnout detection circuit are both integrated into a simulation box and the reverse position is controlled by double buttons.

[0039] Specific reference Figure 2 The process of the turnout simulation test for DC turnout is as follows:

[0040] When the indoor control console operates the DC turnout to the reverse position, the action power supply (DC 220V) will be connected to the bulb in the simulation box through the first DC branch line X1 and the fourth DC branch line X4, and the light will be on. After the action is completed, press the double button to the reverse position. At this time, the indication power supply (AC 110V) will be connected to the reverse position indicator light red after being rectified by the rectifier diode through the second DC branch line X2 and the third DC branch line X3. When the indoor control console operates the turnout to the positioning position, the action power supply (DC 220V) will be connected to the DC load bulb HL in the simulation box through the second DC branch line X2 and the fourth DC branch line X4, and the light will be on. After the action is completed, press the double button to the positioning position, and the relay contact will be connected to another position. At this time, the indication power supply (AC 110V) will be connected to the positioning indicator light green after being rectified by the rectifier diode through the first DC branch line X1 and the third DC branch line X3. This device is used to check the integrity of the indoor action and indication circuit. Among them, the stop switch can interrupt the action of the turnout, and the light-controlled switch prevents the action power supply from being connected to the indication to burn out the rectifier tube.

[0041] The working principle of DC turnout action and indication circuit is as follows:

[0042] like Figure 5 As shown, when the indoor control console operates the DC switch to the reverse position, the action power supply (DC 220V) will be connected to the DC load bulb HL in the simulation box through the first DC branch line X1 and the fourth DC branch line X4, and the action will be lit. After the action is completed, press the double button to the reverse position, and the relay contact will be connected to another position. At this time, the power supply (AC 110V) will be connected to the DC positioning reverse position indicator light after rectification through the second DC branch line X2 and the third DC branch line X3 through the rectifier diode, and the red light will be on.

[0043] like Figure 6 As shown, when the indoor control console operates the turnout to position, the action power supply (DC 220V) will be connected to the DC load bulb HL in the simulation box through the second DC branch line X2 and the fourth DC branch line X4, and the action is completed. Press the double button to position, and the relay contact is connected to another position. At this time, the power supply (AC 110V) will be connected to the DC position reverse indicator light after rectification through the first DC branch line X1 and the third DC branch line X3 rectifier diode, and the green light will be on.

[0044] Specific reference Figure 4 The turnout simulation test process for three-phase AC turnout is as follows:

[0045] When the indoor control console operates the three-phase AC switch to the reverse position, the action power supply (AC 380V) will be connected to the AC load bulbs L1, L2, and L3 in the simulation box through the first AC branch line X1, the third AC branch line X3, and the fourth AC branch line X4, and they will light up; after the action is completed, press the double button to the reverse position, and the relay contacts will be connected to another position. At this time, the power supply (AC 110V) will be connected to the negative half-cycle power supply through the first AC branch line X1 and the third AC branch line X3 diode rectification, and the third AC branch line X3 (+) and the fifth AC branch line X5 (-) will be connected to the AC positioning reverse position indicator light through the positive half-cycle power supply, and the red light will be on. When the indoor control console operates the turnout to position, the action is to connect the AC load bulbs L1, L2, and L3 in the simulation box through the first AC branch line X1, the second AC branch line X2, and the fifth AC branch line X5 to light up; the indication is that the first AC branch line X1 and the second AC branch line X2 are diode rectified to form a positive half-cycle power supply, and the second AC branch line X2 (-) and the fourth AC branch line X4 (+) are connected to the positioning indicator light through the negative half-cycle power supply to light up green. This device is used to check the integrity of the indoor action and indication circuit. The stop switch can interrupt the action of the turnout, and the function of the light-controlled switch is to disconnect the indication circuit when the load bulb in the simulation box is lit, so as to prevent the action power supply from being connected to the indication and burning the rectifier tube.

[0046] The working principle of the three-phase AC turnout action and indication circuit is as follows:

[0047] like Figure 7 As shown, when the indoor control console operates the three-phase AC switch to the reverse position, the action power supply (AC 380V) will be connected to the AC load bulbs L1, L2, and L3 in the simulation box through the first AC branch line X1, the third AC branch line X3, and the fourth AC branch line X4, and light up; after the action is completed, press the double button to the reverse position, and the relay contact is connected to another position. At this time, the power supply (AC 110V) will be connected to the negative half-cycle power supply through the first AC branch line X1 and the third AC branch line X3 diode rectification, and the third AC branch line X3 (+) and the fifth AC branch line X5 (-) will be connected to the AC positioning reverse position indicator light through the positive half-cycle power supply, and the red light will be on.

[0048] like Figure 8 As shown, when the indoor control console operates the switch to position, the action circuit is connected to the AC load bulbs L1, L2, and L3 in the simulation box through the first AC branch line X1, the second AC branch line X2, and the fifth AC branch line X5, and the light is on; after the action is completed, press the double button to position, and the relay contact is connected to another position. At this time, it means that the power supply (AC 110V) will be rectified by the first AC branch line X1 and the second AC branch line X2 diodes to become a positive half-cycle power supply, and the second AC branch line X2 (-) and the fourth AC branch line X4 (+) are connected to the AC positioning reverse position indicator light through the negative half-cycle power supply.

[0049] The turnout simulation test detection system designed by the present invention integrates the simulation tests of the two most commonly used turnouts on the railway, and can basically simulate and test the turnouts on the railway; it can meet the simultaneous test of the action and indication of the turnout, reduce the repeated operation time, and the wiring is connected in sequence according to the position, which can effectively prevent the reversal line and reduce errors, thereby improving the test efficiency; in addition, the reverse position indicator light and the voltmeter can be located to intuitively see the action status and indication position of the turnout, which is easy to process, light in size, and easy to carry.

[0050] This device was used in the newly built Wuhan-Shiyan high-speed railway and the existing Xiangyu Line Huaguo Station renovation project, which greatly reduced the simulation test time during construction, achieved better test results, reduced the number of test personnel, reduced cross-operation with other professionals, reduced project costs, highlighted the advantages of integrated functions, and ensured the smooth opening of the project. The renovation of the existing line signal building reduced the number of test windows for the existing outdoor turnout to the new control system, and also reduced the impact on driving safety.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A turnout simulation test detection system, characterized in that: It includes a DC turnout detection circuit and an AC turnout detection circuit, which are used to perform turnout simulation tests on the DC turnout and the AC turnout respectively; The DC turnout detection circuit is composed of four DC branches, a DC positioning and reverse position indicator light, a first rectifier diode, a high and low frequency trigger relay, and a DC load bulb; the four DC branches include a first DC branch, a second DC branch, a third DC branch, and a fourth DC branch; the DC load bulb is mounted on the fourth DC branch of the branch, and is connected to the first DC branch or the second DC branch through a high and low frequency trigger relay, and is used to switch the DC turnout indicating the circuit positioning or reverse position; The AC turnout detection circuit package consists of five AC branches, an AC positioning and reverse position indicator light, a second rectifier diode, high and low frequency trigger relays, a resistor, and an AC load bulb; the five AC branches include a first AC branch, a second AC branch, a third AC branch, a fourth AC branch, and a fifth AC branch; three groups of AC load bulbs are provided, and the three groups of AC load bulbs are respectively switched and mounted on the first AC branch, the third AC branch, and the fourth AC branch or on the first AC branch, the second AC branch, and the fifth AC branch through high and low frequency trigger relays, and are used to switch the AC turnout to indicate the circuit positioning or reverse position.

2. The turnout simulation test detection system according to claim 1, characterized in that: The DC load bulbs are connected to a DC voltmeter; and the three groups of AC load bulbs are connected to AC voltmeters in pairs.

3. The turnout simulation test detection system according to claim 1, characterized in that: The fourth DC branch line and the first AC branch line are both provided with a stop switch.

4. The turnout simulation test detection system according to claim 1, characterized in that: The DC load bulb power is 150W, and the DC load bulb power is 200W.

5. The turnout simulation test detection system according to claim 1, characterized in that: The third DC branch line and the second DC branch line are both provided with light-controlled switches.

6. The turnout simulation test detection system according to any one of claims 1 to 5, characterized in that: The incoming end of the four-way DC branch line is installed with a four-pole terminal block; the incoming end of the five-way AC branch line is installed with a five-pole terminal block.

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