Railway electro-pneumatic switch machine test box

Abstract

The utility model discloses a railway electro-pneumatic switch machine test box, which relates to the railway field, and comprises an indoor verification module used for realizing the simulation of an automatic switch of a switch machine and realizing the simulation when a locking valve is not electrified and a turnout cannot be operated; the outdoor verification module comprises an indicating lamp unit used for indicating the working state of the switch machine experiment sub-circuit; the pole conversion unit is used for controlling the point switch testing unit to start testing after pole conversion is completed; the beneficial effects of the utility model are that the device breaks through a conventional debugging method of indoor and outdoor cooperation debugging of the electro-pneumatic switch machine, respectively verifies an indoor circuit and an outdoor cable channel, achieves the test purpose, improves the test efficiency of the electro-pneumatic switch machine, can play a great role in the overhaul and reconstruction construction of a hump field, and improves the working efficiency of the electro-pneumatic switch machine. Indoor construction debugging of the electro-pneumatic switch machine is not limited by the outdoor construction progress, outdoor construction debugging is not limited by the indoor progress, and the field requirement for rapidly completing debugging is met.

Description

Technical Field

[0001] This utility model relates to the railway field, specifically a test chamber for a railway electro-pneumatic switch machine. Background Technology

[0002] Switch machines are fundamental equipment in signaling systems, used to switch, lock, and provide correct signals for turnouts. They are devices directly related to traffic safety and play a vital role in ensuring traffic safety and improving transportation efficiency. Electro-pneumatic switch machines are unique equipment in hump yards, using control power to control the actuation valves and using the power of the air ducts to achieve turnout operation.

[0003] During the hump yard overhaul project, indoor and outdoor connection tests are required before the track can be put into operation. Turnout testing is constrained by track conditions (outdoors) and requires indoor coordination. The indoor construction and commissioning of the electro-pneumatic switch machine is limited by the outdoor construction schedule, and vice versa, making it inconvenient and requiring improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a test chamber for a railway electro-pneumatic switch machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A test chamber for a railway electro-pneumatic switch machine includes:

[0007] The indoor verification module is used to simulate the automatic switch machine opening and closing device and to simulate the situation where the switch cannot be operated when the locking valve is not energized.

[0008] The outdoor verification module includes:

[0009] Indicator unit, used to indicate the working status of switch machine experimental sub-circuit;

[0010] The pole-switching unit is used to control the switch machine test unit to start testing after the pole-switching is completed;

[0011] The switch machine testing unit is used to complete the outdoor construction and commissioning of the switch machine;

[0012] The indoor verification module and the outdoor verification module are connected in parallel. In the outdoor verification module, the indicator light unit, the pole changing unit, and the switch machine test unit are connected in parallel.

[0013] As a further embodiment of this utility model: the indicator unit includes switch KA2, switch DBJ1-2, switch FBJ1-2, indicator DBD, and indicator FBD. One end of switch KA2 is connected to power supply terminal Z2, and the other end of switch KA2 is connected to one end of switch DBJ1-2 and one end of switch FBJ1-2. The other end of switch DBJ1-2 is connected to power supply terminal F2 through indicator DBD, and the other end of switch FBJ1-2 is connected to power supply terminal F2 through indicator FBD.

[0014] As a further embodiment of this utility model: the polarity switching unit includes a switch KA1, a switch FA, a switch DA, and a relay DCJ1. One end of the switch KA1 is connected to the power supply terminal F1, and the other end of the switch KA1 is connected to one end of the switch FA and one end of the switch DA. The other end of the switch FA is connected to the fourth terminal of the relay DCJ1, and the other end of the switch DA is connected to the first terminal of the relay DCJ1. The second and third terminals of the relay DCJ1 are connected to the power supply terminal F1.

[0015] As a further embodiment of this utility model: the switch machine test unit includes switch KA3, switch DCJ1-111-112-113, relay DBJ1, relay FBJ1, switch DBJ1-1, switch FBJ1-1, and switch DCJ1-121-122-123. One end of switch KA3 is connected to the power supply terminal Z3, and the other end of switch KA3 is connected to the first terminal and circuit lead SF of switch DCJ1-111-112-113. The second terminal of switch DCJ1-111-112-113 is connected to the first terminal and circuit lead DK of relay DBJ1, and the other end of relay DBJ1 is connected to... Connect circuit lead DB. Connect the third terminal of switch DCJ1-111-112-113 to circuit lead FK and one end of relay FBJ1. Connect the other end of relay FBJ1 to circuit lead FB. Connect the first terminal of switch DCJ1-121-122-123 to power supply terminal F3 and circuit lead SFH. Connect the second terminal of switch DCJ1-121-122-123 to one end of switch DBJ1-1. Connect the other end of switch DBJ1-1 to circuit lead DKH and one end of switch FNJ1-1. Connect the third terminal of switch DCJ1-121-122-123 to the other end of switch FNJ1-1.

[0016] As a further embodiment of this utility model: the indoor verification module includes a relay DCJ2 and a switch DCJ2-111-112-113. The first end of the relay DCJ2 is connected to the circuit lead DK, the second end of the relay DCJ2 is connected to the third end of the relay DCJ2 and the circuit lead DKH, the fourth end of the relay DCJ2 is connected to the circuit lead FK, the first end of the switch DCJ2-111-112-113 is connected to the circuit lead HDK, the second end of the switch DCJ2-111-112-113 is connected to the circuit lead FB, and the third end of the switch DCJ2-111-112-113 is connected to the circuit lead DB.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This utility model breaks the traditional debugging method of indoor and outdoor joint debugging of electro-pneumatic switch machines, and verifies the indoor circuit and outdoor cable channel separately to achieve the test purpose, improve the efficiency of electro-pneumatic switch machine testing, and can play a greater role in the major renovation and construction of hump yards. The indoor construction and debugging of electro-pneumatic switch machines is not limited by the outdoor construction progress, and the outdoor construction and debugging is not limited by the indoor progress, thus meeting the on-site requirements for rapid completion of debugging. Attached Figure Description

[0018] Figure 1 This is a circuit diagram of a railway electro-pneumatic switch machine test box. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 A test chamber for a railway electro-pneumatic switch machine, comprising:

[0021] The indoor verification module is used to simulate the automatic switch machine opening and closing device and to simulate the situation where the switch cannot be operated when the locking valve is not energized.

[0022] The outdoor verification module includes:

[0023] Indicator unit, used to indicate the working status of switch machine experimental sub-circuit;

[0024] The pole-switching unit is used to control the switch machine test unit to start testing after the pole-switching is completed;

[0025] The switch machine testing unit is used to complete the outdoor construction and commissioning of the switch machine;

[0026] The indoor verification module and the outdoor verification module are connected in parallel. In the outdoor verification module, the indicator light unit, the pole changing unit, and the switch machine test unit are connected in parallel.

[0027] In a specific embodiment: Verify the indoor circuit: During indoor debugging, connect the equipment wiring to the distribution panel to simulate the operation of the outdoor electro-pneumatic switch machine, communicate the operation and indication circuit of the indoor electro-pneumatic switch machine, and verify whether the internal, external and drive acquisition circuits of the indoor combination are correct.

[0028] Verify the outdoor passage: Connect the equipment to the switch machine line handle or cable to simulate indoor power supply, drive the solenoid valve to make the switch move, and simulate the switch indication through the switch opener to verify the correctness of the switch line handle and cable passage.

[0029] This device can simulate indoor circuitry driving outdoor turnouts, checking the correctness of cable routing and reducing the impact of track circuit occupancy on electro-pneumatic switch machine testing during lap tests. It also simulates outdoor electro-pneumatic switch machine switching to verify the correctness of the indoor circuitry.

[0030] Economic Benefits: The instrument was used to test over 40 switch machines at the Harbin South Fourth Field, conducting debugging and retesting. After its application in the construction of the Harbin South Fourth Field, this utility model addresses pain points and difficulties encountered during construction from the field. It allows for independent debugging of switch machines, eliminating the need to rely on indoor conditions before outdoor debugging can proceed. Simultaneously, it can be used for indoor debugging to test indoor circuits. The equipment utilizes relay circuits, ensuring overall stability. Battery power makes it convenient to use and helps on-site testing personnel quickly handle faults, improving debugging efficiency.

[0031] By inspecting the indoor circuits, cable channels, and turnouts in advance, the construction period can be shortened and the number of construction personnel reduced. Based on the current pace of 4 people per team debugging an average of 8 electro-pneumatic switch machines per workday, using the test chamber would require only 2 people per workday to debug 16 switch machines. A large marshalling yard has approximately 120 electro-pneumatic switch machines. Assuming a daily construction cost of 8,000 yuan and a daily cost of 400 yuan per worker, the construction cost per marshalling yard can be reduced by (8000 + 4 * 400) * (120 / 8) - (8000 + 2 * 400) * (120 / 16) = 144000 - 66000 = 78000 yuan.

[0032] This device breaks away from the traditional indoor and outdoor joint debugging method of electro-pneumatic switch machines. It verifies the indoor circuit and outdoor cable channel separately to achieve the testing purpose and improves the efficiency of electro-pneumatic switch machine testing. It can play a significant role in the major renovation and construction of hump yards. Its design concept can also be used to create testing devices for other equipment, making it highly valuable for promotion.

[0033] In this embodiment: Please refer to Figure 1 The indicator unit includes switch KA2, switch DBJ1-2, switch FBJ1-2, indicator DBD, and indicator FBD. One end of switch KA2 is connected to power supply terminal Z2, and the other end of switch KA2 is connected to one end of switch DBJ1-2 and one end of switch FBJ1-2. The other end of switch DBJ1-2 is connected to power supply terminal F2 through indicator DBD, and the other end of switch FBJ1-2 is connected to power supply terminal F2 through indicator FBD.

[0034] In this embodiment: Please refer to Figure 1 The polarity switching unit includes switch KA1, switch FA, switch DA, and relay DCJ1. One end of switch KA1 is connected to power supply terminal F1. The other end of switch KA1 is connected to one end of switch FA and one end of switch DA. The other end of switch FA is connected to the fourth terminal of relay DCJ1. The other end of switch DA is connected to the first terminal of relay DCJ1. The second and third terminals of relay DCJ1 are connected to power supply terminal F1.

[0035] In this embodiment: Please refer to Figure 1 The switch machine test unit includes switch KA3, switch DCJ1-111-112-113, relay DBJ1, relay FBJ1, switch DBJ1-1, switch FBJ1-1, and switch DCJ1-121-122-123. One end of switch KA3 is connected to power supply terminal Z3, and the other end of switch KA3 is connected to the first terminal and circuit lead SF of switch DCJ1-111-112-113. The second terminal of switch DCJ1-111-112-113 is connected to the first terminal and circuit lead DK of relay DBJ1, and the other end of relay DBJ1 is connected to circuit lead DB. The third terminal of switch DCJ1-111-112-113 is connected to circuit lead FK and one end of relay FBJ1. The other end of relay FBJ1 is connected to circuit lead FB. The first terminal of switch DCJ1-121-122-123 is connected to power supply terminal F3 and circuit lead SFH. The second terminal of switch DCJ1-121-122-123 is connected to one end of switch DBJ1-1. The other end of switch DBJ1-1 is connected to circuit lead DKH and one end of switch FNJ1-1. The third terminal of switch DCJ1-121-122-123 is connected to the other end of switch FNJ1-1.

[0036] External leads of the test chamber

[0037] The test chamber has a total of 14 leads. DK, DB, FB, FK, DKH, SF, and SFH are leads for verifying the outdoor circuit, while DK1, DB1, FB1, FK1, DKH1, SF1, and SFH1 are leads for verifying the indoor circuit. The two sets of leads cannot work at the same time.

[0038] Buttons and indicator lights

[0039] KA1, KA2, and KA3 are three sets of non-self-resetting push-button contact switches. Pressing them connects the power supply (Z1 and F1, Z2 and F2, Z3 and F3). Pressing them again resets the buttons and disconnects the power supply. DA and FA are self-resetting turnout control push-button switches used when testing outdoor circuits. Pressing them connects the power supply and releasing them disconnects it. DBD is the positioning indicator light. When it is lit, it indicates that the outdoor switch machine is in the positioning position. FBD is the reverse position indicator light. When it is lit, it indicates that the outdoor switch machine is in the reverse position.

[0040] relay

[0041] DBJ, FBJ, and DCJ are railway safety relays, all of which are formal indoor equipment. DBJ is a position indication relay; when it is pulled up, it indicates that the turnout is in the correct position. FBJ is a reverse position indication relay; when it is pulled up, it indicates that the turnout is in the reverse position. DCJ is a turnout control relay; when it is pulled up, it indicates control towards the correct position, and when it is lowered, it indicates control towards the reverse position. DBJ1, FBJ1, DCJ1, DCJ2, and SFJ are small electromagnetic relays, which are equipment inside the test chamber. Among them, DCJ1 and DCJ2 are magnetic latching relays. DBJ1, FBJ1, and DCJ1 are used to simulate indoor circuit control of outdoor switch machines, while DCJ2 and SFJ are used to simulate the automatic opening and closing devices, control valves, and locking valves of outdoor electro-pneumatic switch machines.

[0042] power supply:

[0043] The equipment is powered by three 24V DC power supplies: Z1 and F1, Z2 and F2, and Z3 and F3.

[0044] Verify outdoor circuit:

[0045] When verifying the outdoor circuit, disconnect the flexible wire side of the distribution panel and connect it to the test box lead.

[0046] Press the power button on the test chamber to start the equipment.

[0047] Step S1: When the turnout is positioned, connect the turnout positioning indicator circuit. Relay DBJ1 is energized and pulled up: Z3——DCJ-111——DCJ1-112——DBJ1-1——Switch machine automatic switch——F3; Indicator light circuit: Z2——KA2——DBJ1-2——DBD——F2;

[0048] Step S2: When the turnout is in the reverse position, connect the turnout reverse position indication circuit. Relay FBJ1 is energized and pulled up: Z3——DCJ-111——DCJ1-113——FBJ1——Switch machine automatic switch——F3; Indication light circuit: Z2——KA2——FBJ1-2——FBD——F2;

[0049] Step S3: When the turnout is in the positioning position, press switch FA to connect the DCJ1 polarity switching circuit: Z1——KA1——FA——DCJ1-4——DCJ1-3——F1;

[0050] Step S4: After DCJ1 is switched, connect the outdoor switch machine control circuit: Z3——KA3——DCJ1-111——DCJ1-113——FK——BJD——FBJ1-1——DCJ-123——DCJ-121——F3; drive the outdoor reverse position control valve to switch the turnout to the reverse position.

[0051] Step S5: When the turnout is in the reverse position, press DA to connect the DCJ1 polarity switching circuit: Z1——KA1——DA——DCJ1-1——DCJ1-2——F1;

[0052] Step S6: After DCJ1 is switched to the correct pole, connect the outdoor switch machine control circuit: Z3——KA3——DCJ1-111——DCJ1-112——DK——BJD——DBJ1-1——DCJ-122——DCJ-121——F3; drive the outdoor positioning control valve to switch the turnout to the correct position.

[0053] Step S7: The locking valve circuit and the turnout control indication circuit share one power supply (one Z3, two F3s, and one switch KA3 in the figure can complete the power supply control of the two circuits), ensuring that the switch machine is in the locked state when there is no power: Z3——KA3——YLJ——SF——F3.

[0054] In this embodiment: Please refer to Figure 1 The indoor verification module includes a relay DCJ2 and a switch DCJ2-111-112-113. The first terminal of the relay DCJ2 is connected to the circuit lead DK, the second terminal of the relay DCJ2 is connected to the third terminal of the relay DCJ2 and the circuit lead DKH, and the fourth terminal of the relay DCJ2 is connected to the circuit lead FK. The first terminal of the switch DCJ2-111-112-113 is connected to the circuit lead HDK, the second terminal of the switch DCJ2-111-112-113 is connected to the circuit lead FB, and the third terminal of the switch DCJ2-111-112-113 is connected to the circuit lead DB.

[0055] Switch machine simulation circuit: The switch machine simulation circuit uses the power supply of the indoor formal equipment to drive the magnetic holding relay DCJ2, and then uses the characteristics of the magnetic holding relay to control the switch to realize the simulation of the automatic switch machine opening and closing device.

[0056] The locking valve simulation circuit uses an SFJ to simulate the locking valve, and then its contacts are connected in series with the switch machine simulation circuit to simulate the inability to operate the turnout when the locking valve is not energized.

[0057] The working principle of this utility model is as follows: the indoor verification module is used to simulate the automatic opening and closing device of the switch machine, and to simulate the situation where the switch cannot be operated when the locking valve is not energized; the indicator light unit is used to indicate the working status of the experimental sub-circuit of the switch machine; the pole-switching unit is used to control the switch machine test unit to start testing after the pole-switching is completed; the switch machine test unit is used to complete the outdoor construction and debugging of the switch machine.

[0058] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A railway electro-pneumatic switch machine test box characterized by, The railway electric air switch test box comprises: An indoor verification module for realizing simulation of automatic switch of the switch machine, and realizing simulation when the turnout cannot be controlled when the locking valve is not powered; An outdoor verification module comprising: An indicator light unit for indicating the working state of the switch machine experiment sub-circuit; A switch pole unit for controlling the switch machine test unit to start testing after the switch pole is completed; A switch machine test unit for completing the outdoor construction debugging of the switch machine; The indoor verification module and the outdoor verification module are connected in parallel, and in the outdoor verification module, the indicator light unit, the switch pole unit and the switch machine test unit are connected in parallel.

2. The railway electro-pneumatic switch machine test box of claim 1, wherein, The indicator light unit comprises a switch KA2, switches DBJ1-2 and FBJ1-2, indicator lights DBD and FBD, one end of the switch KA2 is connected to a power supply end Z2, the other end of the switch KA2 is connected to one end of the switch DBJ1-2 and one end of the switch FBJ1-2, the other end of the switch DBJ1-2 is connected to the power supply end F2 through the indicator light DBD, and the other end of the switch FBJ1-2 is connected to the power supply end F2 through the indicator light FBD.

3. The railway electro-pneumatic switch machine test box of claim 1, wherein, The switch pole unit comprises a switch KA1, switches FA and DA, and a relay DCJ1, one end of the switch KA1 is connected to a power supply end F1, the other end of the switch KA1 is connected to one end of the switch FA and one end of the switch DA, the other end of the switch FA is connected to the fourth end of the relay DCJ1, the other end of the switch DA is connected to the first end of the relay DCJ1, and the second end and the third end of the relay DCJ1 are connected to the power supply end F1.

4. The railway electro-pneumatic switch machine test box of claim 1, wherein, The switch machine test unit comprises a switch KA3, switches DCJ1-111-112-113, a relay DBJ1, a relay FBJ1, switches DBJ1-1 and FBJ1-1, and switches DCJ1-121-122-123, one end of the switch KA3 is connected to a power supply end Z3, the other end of the switch KA3 is connected to the first end of the switch DCJ1-111-112-113 and a circuit lead SF, the second end of the switch DCJ1-111-112-113 is connected to the first end of the relay DBJ1 and a circuit lead DK, the other end of the relay DBJ1 is connected to a circuit lead DB, the third end of the switch DCJ1-111-112-113 is connected to a circuit lead FK and one end of the relay FBJ1, the other end of the relay FBJ1 is connected to a circuit lead FB, the first end of the switch DCJ1-121-122-123 is connected to a power supply end F3 and a circuit lead SFH, the second end of the switch DCJ1-121-122-123 is connected to one end of the switch DBJ1-1 and the other end of the switch DBJ1-1 is connected to a circuit lead DKH and one end of a switch FNJ1-1, and the third end of the switch DCJ1-121-122-123 is connected to the other end of the switch FNJ1-1.

5. Railway electro-pneumatic switch machine test box according to any one of claims 1 to 4, characterized in that The indoor verification module comprises a relay DCJ2, switches DCJ2-111-112-113, a first end of the relay DCJ2 is connected with a circuit lead DK, a second end of the relay DCJ2 is connected with a third end of the relay DCJ2 and a circuit lead DKH, a fourth end of the relay DCJ2 is connected with a circuit lead FK, a first end of the switches DCJ2-111-112-113 is connected with a circuit lead HDK, a second end of the switches DCJ2-111-112-113 is connected with a circuit lead FB, and a third end of the switches DCJ2-111-112-113 is connected with a circuit lead DB.

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