Locomotive whistling pressure switch test board

Abstract

The utility model provides a locomotive whistling pressure switch testboard, which comprises a pressure transmitter testboard and an LKJ comprehensive testboard, and is characterized in that a pressure pipeline of the pressure transmitter testboard is connected with a test switching device through a gas circuit, and the test switching device is connected with a whistling pressure switch through a gas circuit; the whistling pressure switch is connected to the LKJ function expansion box through a circuit, the LKJ function expansion box is connected to the LKJ host through a circuit, the LKJ host is connected with the LKJ display through a circuit, and the pressure transmitter test bench outputs air pressure to the test switching device to form a pressure condition for driving the whistling pressure switch, so that the whistling pressure switch acts. Pressure signals are converted into electric signals to be transmitted to the LKJ function expansion box, the LKJ function expansion box transmits the electric signals to the LKJ host to achieve storage of signal data, and the signal data are displayed in real time through the LKJ displayer. According to the utility model, complete function detection can be carried out on the locomotive whistling pressure switch before the locomotive whistling pressure switch is put into use, the equipment application quality is improved, and the cost expenditure is reduced.

Description

Technical fields:

[0001] This utility model relates to the field of locomotive horn testing technology, and in particular to a locomotive horn pressure switch test bench. Background technology:

[0002] The shortcomings of the existing NCS25 locomotive horn device intelligent test bench:

[0003] 1. The test bench cannot accurately reflect the reliability of the locomotive horn pressure switch in its operating environment: The bench operates at AC220V, while the locomotive horn pressure switch operates at DC110V, indicating a discrepancy between the bench's operating voltage and the actual voltage. This test bench only tests the locomotive horn pressure switch and does not consider other factors in the actual locomotive operating environment, resulting in a deviation between the test results and practical applications. Therefore, it cannot perform a complete functional test of the locomotive horn pressure switch.

[0004] 2. The test results cannot be displayed intuitively. The test results can only be verified through data analysis, and cannot quickly determine the specific cause of the fault, thus prolonging the fault handling time and increasing the scope and workload of emergency fault handling. Therefore, the results of the locomotive horn recording equipment are not very meaningful.

[0005] 3. The test time is over 60 seconds, which is too long and results in low work efficiency.

[0006] 4. Due to discrepancies between test results and actual applications, it is easy to misjudge the fault of the locomotive horn pressure switch, leading to the wrong replacement of the locomotive horn pressure switch and resulting in wasted cost expenditures.

[0007] 5. High equipment cost; individual testing equipment is expensive. Summary of the Invention:

[0008] To ensure that locomotive horn pressure switches undergo complete functional testing before being put into use, improving equipment operational quality, and enabling rapid diagnosis in case of horn pressure switch malfunctions, reducing fault delays, increasing work efficiency, and minimizing misdiagnosis and replacement of horn pressure switches, thereby reducing costs and eliminating waste, this utility model provides a locomotive horn pressure switch test bench, including a pressure transmitter test bench and an LKJ integrated test bench. The test bench features a test adapter connected via an air circuit to its pressure pipeline, which is in turn connected to the horn pressure switch via an air circuit. The horn pressure switch is electrically connected to the LKJ function extension in the LKJ integrated test bench. The LKJ function expansion box is connected to the LKJ host via a circuit. The LKJ host is then connected to the LKJ display via a circuit. The pressure transmitter test bench outputs air pressure to the test adapter through the pressure pipeline. After passing through the test adapter, the air pressure forms a pressure condition that drives the whistle pressure switch, causing the whistle pressure switch to activate. This converts the pressure signal into an electrical signal, which is then transmitted to the LKJ function expansion box. The LKJ function expansion box further transmits the electrical signal to the LKJ host. The LKJ host receives the electrical signal from the LKJ function expansion box in real time, saving the signal data. The LKJ display then shows the saved signal data in real time.

[0009] The test adapter is provided with an air inlet passage, a pressure chamber and an air outlet passage arranged from bottom to top. The inner diameter of the air inlet passage is larger than the inner diameter of the air outlet passage, and the inner diameter of the pressure chamber is larger than the diameter of the air inlet passage.

[0010] After the pressure pipeline outputs air pressure to the test adapter, the air pressure is delivered to the whistle pressure switch through the air inlet passage, pressure chamber and air outlet passage. Pressing the whistle button on the top of the whistle pressure switch causes the air pressure in the pressure chamber to increase instantaneously, closing the whistle pressure switch and thus converting the pressure signal into an electrical signal.

[0011] The diameter of the air intake passage is 18mm, and the diameter of the air outlet passage is 10mm.

[0012] The air intake passage and the pressure pipeline, as well as the air outlet passage and the horn pressure switch, are all threaded connections. The air intake passage has an external thread on its outer side with a pitch of 2 mm, and the air outlet passage has an internal thread on its inner side with a pitch of 1 mm.

[0013] The LKJ host is connected to an LKJ2000 portable tester, which is used to simulate locomotive environmental conditions.

[0014] The pressure transmitter test bench, the LKJ main unit, and the LKJ2000 portable tester are all electrically connected to a DC110V power supply.

[0015] An air compressor is installed inside the pressure transmitter test bench to provide air pressure to the pressure pipeline.

[0016] This utility model has the following advantages:

[0017] 1. This utility model accurately simulates the operating environment of a locomotive horn recording device, and its function is reliable. The output voltage of the workbench of this utility model is 110V, which matches the actual voltage. This utility model can simulate the locomotive operating environment and is highly practical.

[0018] 2. The test results of this utility model can be displayed intuitively, and the test results are exactly the same as the locomotive's usage results, which can be used to judge the quality in the most intuitive way;

[0019] 3. This utility model has a short testing time, producing results in 3 seconds, resulting in high work efficiency;

[0020] 4. This utility model has low equipment cost and can be installed on existing equipment. The investment cost is low, less than 10 yuan, and the operating cost is close to zero. Attached image description:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the appearance of the test adapter of this utility model.

[0023] Figure 3 This is a cross-sectional schematic diagram of the test adapter of this utility model.

[0024] Attached image labels:

[0025] 1. Pressure transmitter test bench; 2. LKJ integrated test bench; 3. Pressure pipeline.

[0026] 4. Test adapter 5. Siren pressure switch 6. LKJ function expansion box 7. LKJ main unit 8. LKJ display 9. LKJ2000 portable tester 10. Working power supply DC110V

[0027] 11. Air compressor 4-1, Inlet passage 4-2, Pressure chamber 4-3, Outlet passage 4-4, External thread 4-5, Internal thread 5-1, Wind whistle button Detailed implementation method:

[0028] This utility model provides a locomotive horn pressure switch test bench, including a pressure transmitter test bench 1 and an LKJ integrated test bench 2. The key feature is that a test adapter 4 is connected to the pressure pipeline 3 of the pressure transmitter test bench 1 via an air circuit. The test adapter 4 is further connected to a horn pressure switch 5 via an air circuit. The horn pressure switch 5 is connected to an LKJ function expansion box 6 in the LKJ integrated test bench 2 via an electrical circuit. The LKJ function expansion box 6 is connected to an LKJ host 7 via an electrical circuit. The LKJ host 7 is further connected to an LKJ display 8 via an electrical circuit. The pressure transmitter... Test bench 1 outputs air pressure to test adapter 4 through pressure pipeline 3. After passing through test adapter 4, the air pressure forms a pressure condition to drive horn pressure switch 5, causing horn pressure switch 5 to activate. This converts the pressure signal into an electrical signal and transmits it to LKJ function expansion box 6. LKJ function expansion box 6 further transmits the electrical signal to LKJ host 7. LKJ host 7 receives the electrical signal from LKJ function expansion box 6 in real time, realizes the storage of signal data, and LKJ display 8 displays the stored signal data in real time.

[0029] The test adapter 4 is provided with an air inlet passage 4-1, a pressure chamber 4-2 and an air outlet passage 4-3 arranged sequentially from bottom to top. The inner diameter of the air inlet passage 4-1 is larger than the inner diameter of the air outlet passage 4-3, and the inner diameter of the pressure chamber 4-2 is larger than the diameter of the air inlet passage 4-1.

[0030] After the pressure pipeline 3 outputs air pressure to the test adapter 4, the air pressure is delivered to the whistle pressure switch 5 through the air inlet passage 4-1, pressure chamber 4-2 and air outlet passage 4-3. Pressing the whistle button 5-1 on the top of the whistle pressure switch 5 causes the air pressure in the pressure chamber 4-2 to increase instantaneously, thereby closing the whistle pressure switch 5 and converting the pressure signal into an electrical signal.

[0031] The diameter of the air intake passage 4-1 is 18mm, and the diameter of the air outlet passage 4-3 is 10mm.

[0032] The air intake passage 4-1 and the pressure pipeline 3, the air outlet passage 4-3 and the horn pressure switch 5 are all threaded connections. The outer side of the air intake passage 4-1 is provided with an external thread 4-4, the pitch of which is 2mm. The inner side of the air outlet passage 4-3 is provided with an internal thread 4-5, the pitch of which is 1mm.

[0033] The LKJ host 7 is connected to an LKJ2000 portable tester 9, which is used to simulate locomotive environmental conditions.

[0034] The pressure transmitter test bench 1, the LKJ main unit 7, and the LKJ2000 portable tester 9 are all electrically connected to the working power supply DC110V10.

[0035] An air compressor 11 is installed inside the pressure transmitter test bench 1 to provide air pressure to the pressure pipeline 3.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A locomotive horn pressure switch test bench, comprising a pressure transmitter test bench (1) and an LKJ integrated test bench (2), characterized in that, The pressure line (3) of the pressure transmitter test bench (1) is connected to a test adapter (4) via an air line. The test adapter (4) is connected to a whistle pressure switch (5) via an air line. The whistle pressure switch (5) is connected to the LKJ function expansion box (6) in the LKJ integrated test bench (2) via a circuit. The LKJ function expansion box (6) is connected to the LKJ host (7) via a circuit. The LKJ host (7) is connected to the LKJ display (8) via a circuit.

2. The locomotive horn pressure switch test bench according to claim 1, characterized in that, The test adapter (4) is provided with an air inlet passage (4-1), a pressure chamber (4-2), and an air outlet passage (4-3) from bottom to top. The inner diameter of the air inlet passage (4-1) is larger than the inner diameter of the air outlet passage (4-3), and the inner diameter of the pressure chamber (4-2) is larger than the diameter of the air inlet passage (4-1).

3. The locomotive horn pressure switch test bench according to claim 2, characterized in that, The diameter of the air intake passage (4-1) is 18 mm, and the diameter of the air outlet passage (4-3) is 10 mm.

4. The locomotive horn pressure switch test bench according to claim 2, characterized in that, The air intake passage (4-1) and the pressure pipeline (3), and the air outlet passage (4-3) and the horn pressure switch (5) are all threaded connections. The air intake passage (4-1) is provided with an external thread (4-4) on the outside, and the pitch of the external thread (4-4) is 2mm. The air outlet passage (4-3) is provided with an internal thread (4-5) on the inside, and the pitch of the internal thread (4-5) is 1mm.

5. The locomotive horn pressure switch test bench according to claim 1, characterized in that, The LKJ host (7) is connected to an LKJ2000 portable tester (9) for simulating locomotive environmental conditions.

6. The locomotive horn pressure switch test bench according to claim 5, characterized in that, The pressure transmitter test bench (1), the LKJ host (7), and the LKJ2000 portable tester (9) are all electrically connected to the working power supply DC110V (10).

7. The locomotive horn pressure switch test bench according to claim 1, characterized in that, An air compressor (11) is installed inside the pressure transmitter test bench (1) to provide air pressure to the pressure pipeline (3).

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