A through channel rain test apparatus

Abstract

The application discloses a through-passage raining test equipment and belongs to the technical field of locomotive test. The equipment comprises a track, a plurality of translation stages arranged on the track, two carriages, a through-passage main body arranged between the two carriages, a shell arranged at the middle part of the track, a spraying device arranged in the shell, two door-shaped frames fixedly connected to the inside of the shell, and a plurality of spraying pipelines arranged between the two door-shaped frames. The shell, the spraying device and the refrigerating device arranged in the shell are used in cooperation, water sprayed on the through-passage and the carriages is frozen into ice after the raining test, the problem that the raining test equipment has single function and the use effect is not ideal is solved, and the extreme and comprehensive environmental test on the connection part of the through-passage and the carriage is realized.

Description

Technical Field

[0001] This application relates to the field of locomotive testing technology, and more specifically, to a through-passage rain test device. Background Technology

[0002] The connecting passage is a core component in rail transit vehicles such as subways, high-speed trains, and intercity trains, connecting two adjacent carriages. Its main function is to realize the passage between carriages, and it must also have the ability to be sealed, soundproof, heat-insulated, shock-absorbing, and adaptable to the relative movement of the carriages, such as extension and swaying.

[0003] In related technologies, for testing locomotive components, for example, patent CN216081900U provides a testing device for rain testing of subway / high-speed rail tunnels. This testing device includes a water collection tank, with a protective cover fixedly installed on the upper outer surface of the tank. A drain outlet is provided at one end of the front outer surface of the tank. A mounting frame assembly is located on the left side of the tank. The tunnel body is fixedly installed in the middle of the upper outer surface of the mounting frame assembly. The mounting frame assembly includes a base plate, partition plate, support rod, self-locking casters, adjustment components, a base block, reinforcing rods, and a mounting plate. It offers advantages such as easy water collection and treatment, easy size adjustment of the mounting frame assembly fixing the tunnel body, easy adjustment of the tunnel body's expansion and contraction dimensions, detailed testing of the tunnel product's sealing performance, simulation of the rain environment during subway / high-speed rail operation, and improved experimental accuracy, leading to better application prospects.

[0004] While the existing technical solutions mentioned above have solved the problem of conventional water spray tests, their functions are relatively limited. During the long-term operation of the train, the connecting passage, as a key component connecting the car body, needs to be continuously exposed to complex outdoor conditions. It not only has to withstand the high-intensity scouring of rainwater frequently, but also has to cope with extreme temperature changes, such as the high temperature environment after summer sun exposure, the low temperature conditions of winter, and the violent impact of airflow during high-speed travel. It cannot simulate the impact of these environmental changes.

[0005] In view of this, we propose a through-channel rain test device. Utility Model Content

[0006] The purpose of this application is to provide a rain test device for a through-passage, which can effectively solve the problems of existing technologies that are limited in function and unable to simulate environmental changes, and achieve the effect of simulating multiple scenarios and conducting more comprehensive tests on through-passages.

[0007] This application provides a through-passage rain test device, comprising:

[0008] The track, on which multiple translation platforms are provided;

[0009] The two carriages are placed on a translation platform, and a through passage is installed between the two carriages.

[0010] The outer casing is installed in the middle of the track, and a spraying device is installed inside the outer casing. The spraying device includes two portal frames fixedly connected inside the outer casing, and multiple spraying pipes are installed between the two portal frames.

[0011] The interior of the outer casing is equipped with a refrigeration unit and a hot air blower.

[0012] As an optional solution to the technical solution of this application, multiple spray pipes are respectively arranged on both sides and the top inside the shell. The spray pipes are all rotatably connected to the portal frame, and the portal frame is provided with an adjustment mechanism for adjusting the spray angle of the spray pipes.

[0013] As an optional solution to the technical solution of this application, the adjustment mechanism includes a hydraulic cylinder fixedly connected to the top wall of the housing, and a linkage frame matching the portal frame is fixedly connected to the bottom end of the hydraulic cylinder. Multiple connecting rods are hinged on the linkage frame, and the other end of each connecting rod is hinged to the spray pipe.

[0014] As an optional solution to the technical solution in this application, the refrigeration device includes refrigeration pipes installed on both sides inside the housing, a refrigeration unit is installed on the upper surface of the housing, and the output end of the refrigeration unit is connected to the input end of the refrigeration pipes.

[0015] As an optional solution to the technical solution in this application, two sealing curtains are fixedly connected to the inner side of the outer shell, and the two sealing curtains close the openings at both ends of the outer shell to seal the outer shell.

[0016] As an optional solution to the technical solution in this application, an air pump is installed on the upper surface of the housing, and the output end of the air pump passes through the housing and extends into the interior of the housing for pressurizing the interior of the housing.

[0017] As an optional solution to the technical solution in this application, a control box is installed on the outer casing.

[0018] As an optional solution to the technical solution of this application, each of the portal frames is fixedly connected with multiple connecting plates, and each of the connecting plates is threaded with bolts. Both portal frames are installed inside the outer shell through connecting plates and bolts.

[0019] As an optional solution to the technical solution in this application, the spraying device further includes a water supply pipe for providing a high-pressure water source, the input end of each spraying pipe is connected to the water supply pipe, and each translation platform is provided with multiple water leakage holes.

[0020] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0021] This application employs an outer casing, along with a spraying device and a refrigeration device installed within the casing. When used in conjunction with these devices, refrigeration can be performed after the water spray test, freezing the water sprayed onto the connecting passage and the carriage into ice. This effectively solves the problem of the current water spray test equipment having a single function and unsatisfactory performance, thereby enabling extremely comprehensive environmental testing of the connection between the connecting passage and the carriage.

[0022] This application utilizes a hot air blower installed inside the casing to generate hot air, which can simulate environmental warming. This not only enables water spraying tests to be conducted in high-temperature environments but also accelerates the melting of ice, allowing water to adhere to and penetrate into the ice, thus speeding up the testing process.

[0023] This application utilizes a sealing curtain and an air pump. The sealing curtain can enclose the test area inside the shell, preventing water from splashing outwards during water spraying and ensuring a clean test environment. Furthermore, the air pump can be used to pressurize the inside of the shell, further enhancing the water penetration ability after water spraying and improving the test results. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the through-channel rain test equipment disclosed in a preferred embodiment of this application;

[0025] Figure 2 This is a side view of the rain test equipment for a through-passage disclosed in a preferred embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the translation platform in the through-channel rain test equipment disclosed in a preferred embodiment of this application;

[0027] Figure 4 This is a structural schematic diagram of the cross-sectional view of the outer shell of the through-channel rain test device disclosed in a preferred embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the overall structure of the cooling pipe array in the through-channel rain test equipment disclosed in a preferred embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the overall structure of the portal frame in the through-channel rain test equipment disclosed in a preferred embodiment of this application;

[0030] Figure 7 The tunnel rain test equipment disclosed in a preferred embodiment of this application Figure 6 Enlarged structural diagram of the structure at point A in the middle;

[0031] The following are the labels in the diagram: 1. Track; 2. Translation platform; 3. Carriage; 4. Main body of the passageway; 5. Shell; 6. Portal frame; 7. Spray pipe; 8. Connecting rod; 9. Linkage frame; 10. Hydraulic cylinder; 11. Connecting plate; 12. Refrigeration pipe; 13. Refrigeration unit; 14. Hot air blower; 15. Air pump; 16. Sealing curtain; 17. Control box. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] Reference Figures 1 to 7 This application discloses a through-passage rain test device, comprising: a track 1, on which multiple translation platforms 2 are arranged; two carriages 3, both carriages 3 are placed on the translation platforms 2, and a through-passage body 4 is installed between the two carriages 3; an outer shell 5, which is installed in the middle of the track 1, and a control box 17 is installed on the outer shell 5. A spray device is installed inside the outer shell 5, and the spray device includes two portal frames 6 fixedly connected inside the outer shell 5, and multiple spray pipes 7 are installed between the two portal frames 6; a refrigeration device and a hot air blower 14 are respectively installed inside the outer shell 5.

[0034] The track 1 and the flat transfer platform 2 are the conveying mechanisms of the equipment, capable of transporting and moving the test carriage 3 and the main body of the connecting passage 4. The control box 17 integrates PLC control components and a human-machine interface, allowing operators to set various test parameters. The two portal frames 6 in the spray device are the supporting structures for the spray pipes 7. The distributed design of multiple spray pipes 7 can achieve comprehensive coverage of the connection between the main body of the connecting passage 4 and the carriage 3, ensuring no blind spots in the test. The installed refrigeration device and hot air fan 14 enable the equipment to simulate different extreme temperature environments, meeting its performance testing requirements under complex conditions such as high and low temperatures, further expanding the testing range of the equipment.

[0035] Reference Figure 3 , Figure 6 and Figure 7 Multiple spray pipes 7 are respectively installed on both sides and top inside the outer shell 5. All spray pipes 7 are rotatably connected to the portal frame 6. The portal frame 6 is provided with an adjustment mechanism for adjusting the spray angle of the spray pipes 7. The adjustment mechanism includes a hydraulic cylinder 10 fixedly connected to the top wall inside the outer shell 5. The bottom end of the hydraulic cylinder 10 is fixedly connected to a linkage frame 9 that matches the portal frame 6. Multiple connecting rods 8 are hinged on the linkage frame 9. The other end of each connecting rod 8 is hinged to the spray pipe 7.

[0036] The spray pipe 7, located inside the outer casing 5, can spray water from multiple directions at the connection between the main body 4 of the passageway and the carriage 3, simulating the scenario of rainwater cascading from different angles during natural rainfall, thus better reflecting the actual usage environment. The spray pipe 7 is installed with a rotating connection to the portal frame 6. Power can be transmitted through the hydraulic cylinder 10 to the linkage frame 9 and connecting rod 8, causing the spray pipe 7 to rotate and adjusting its spray angle. This allows for targeted spraying of key areas of the passageway, such as sealing strips and connection gaps, improving the relevance and accuracy of the test.

[0037] Reference Figure 3 and Figure 5 The refrigeration device includes refrigeration pipes 12 installed on both sides inside the outer casing 5. A refrigeration unit 13 is installed on the upper surface of the outer casing 5. The output end of the refrigeration unit 13 is connected to the input end of the refrigeration pipes 12.

[0038] The cooling pipes 12 are evenly distributed on both sides of the test space. When used in conjunction with the refrigeration unit 13, they can be used for cooling, so that the internal temperature of the outer shell 5 drops evenly to meet the requirements of low-temperature test scenarios, such as simulating the severe cold environment of northern winter, and testing the sealing performance and structural stability of the through channel at low temperatures.

[0039] Reference Figure 1 and Figure 2 Two sealing curtains 16 are fixedly connected to the inside of the outer casing 5. The two sealing curtains 16 close the openings at both ends of the outer casing 5 to seal the outer casing 5. An air pump 15 is installed on the upper end of the outer casing 5. The output end of the air pump 15 passes through the outer casing 5 and extends into the interior of the outer casing 5 to pressurize the interior of the outer casing 5.

[0040] The sealing curtain 16 is made of rubber and has excellent sealing performance. When the transfer platform 2 sends the test workpiece into the housing 5, the sealing curtain 16 hangs down naturally, fitting tightly against the edges of the transfer platform 2 and the housing 5, sealing the openings at both ends of the housing 5 to prevent water from splashing outwards during spraying. Furthermore, it can be used in conjunction with the air pump 15 to conduct pressurized water spray tests. Specifically, the air pump 15 delivers compressed air into the housing 5, gradually increasing the air pressure within the test space, enhancing the penetration force of rainwater into the gaps of the main body 4 of the through-channel, and more accurately testing the sealing reliability of the through-channel under extreme conditions.

[0041] Reference Figure 3 and Figure 6Each portal frame 6 is fixedly connected with multiple connecting plates 11, and each connecting plate 11 is threaded with bolts. Both portal frames 6 are installed inside the outer shell 5 through connecting plates 11 and bolts. The spraying device also includes a water supply pipe for providing a high-pressure water source. The input end of each spray pipe 7 is connected to the water supply pipe. Each translation platform 2 is provided with multiple water leakage holes.

[0042] The portal frame 6 is installed via connecting plate 11 and bolts, facilitating inspection and maintenance. The portal frame 6 can be easily removed from the outer casing 5 simply by unscrewing the bolts. The water supply pipe of the spray device stably delivers high-pressure water to the spray pipe 7, ensuring stable spray pressure. Multiple drainage holes on the translation platform 2 quickly drain accumulated water after spraying, preventing water from soaking the test workpiece.

[0043] In summary, when using the rain test equipment for the through-passage disclosed in this application, the two carriages 3 to be tested are first placed on the translation platform 2 on the track 1. Then, the through-passage body 4 is installed between the two carriages 3. By controlling the translation platform 2 to move along the track 1, the test workpiece consisting of the carriages 3 and the through-passage body 4 can be transported to the test area inside the shell 5. At this time, the two sealing curtains 16 on the inner side of the shell 5 naturally hang down, which can close the openings at both ends of the shell 5, forming a relatively closed test space. Then, the operator can preset various parameters according to the test standards such as water spray intensity, test duration, extreme temperature range, and pressurization pressure through the control box 17. The operator can also control the extension and retraction of the hydraulic cylinder 10 to drive the linkage frame 9 to rise and fall, and then drive the spray pipe 7 to rotate through the connecting rod 8 to adjust its spray angle. After completion, high-pressure water can be supplied to multiple spray pipes 7 through the water supply pipe. The water flows out through the nozzles on the spray pipes 7, which can cover the connection between the through-passage body 4 and the carriages 3, simulating the rain test. However, if it is necessary to simulate rainwater infiltration under high-pressure conditions during the rainfall test, the air pump 15 can be started. The air pump 15 can deliver compressed air into the shell 5, so that the air pressure in the test space gradually increases. The high-pressure environment will enhance the penetration force of rainwater into the gaps at the connection of the main body 4 of the through channel. If there are defects in the sealing structure at the connection of the main body 4 of the through channel, such as aging of the rubber strip or loosening of the connector, the leakage will be accelerated. Furthermore, if it is necessary to simulate a low-temperature freezing environment, such as the train operation scenario in northern winter, the refrigeration device can be started. The refrigeration unit 13 and the refrigeration pipe 12 work together to quickly cool down the temperature. In this way, the water sprayed on the surface of the main body 4 of the through channel and the carriage 3 can gradually freeze into ice, thereby evaluating its performance in low-temperature environments. If it is necessary to simulate a high-temperature and rainy environment, such as the train operation scenario in southern summer, the hot air blower 14 can be started. The hot air generated by the hot air blower 14 can diffuse into the test space, raising the ambient temperature. Under high-temperature conditions, rainwater will enhance its corrosiveness to the components, thereby verifying its long-term reliability in high-temperature and humid environments.

Claims

1. A through-channel rain test device, characterized in that, Include: Track (1), on which multiple translation platforms (2) are provided; Two carriages (3), both carriages (3) are placed on a translation platform (2), and a through passage body (4) is installed between the two carriages (3); The outer shell (5) is installed in the middle of the track (1). A spraying device is installed inside the outer shell (5). The spraying device includes two portal frames (6) fixedly connected inside the outer shell (5). Multiple spraying pipes (7) are installed between the two portal frames (6). The interior of the outer casing (5) is equipped with a refrigeration device and a hot air blower (14).

2. The through-passage rain test equipment according to claim 1, characterized in that: Multiple spray pipes (7) are respectively installed on both sides and top inside the outer shell (5). The spray pipes (7) are rotatably connected to the portal frame (6). The portal frame (6) is provided with an adjustment mechanism for adjusting the spray angle of the spray pipes (7).

3. The through-passage rain test equipment according to claim 2, characterized in that: The adjustment mechanism includes a hydraulic cylinder (10) fixedly connected to the top wall inside the outer shell (5). The bottom end of the hydraulic cylinder (10) is fixedly connected to a linkage frame (9) that matches the portal frame (6). Multiple connecting rods (8) are hinged on the linkage frame (9), and the other end of each connecting rod (8) is hinged to the spray pipe (7).

4. The through-passage rain test equipment according to claim 1, characterized in that: The refrigeration device includes refrigeration pipes (12) installed on both sides inside the outer casing (5). A refrigeration unit (13) is installed on the upper surface of the outer casing (5). The output end of the refrigeration unit (13) is connected to the input end of the refrigeration pipes (12).

5. The through-passage rain test equipment according to claim 1, characterized in that: Two sealing curtains (16) are fixedly connected to the inside of the outer shell (5). The two sealing curtains (16) close the openings at both ends of the outer shell (5) to seal the outer shell (5).

6. The through-passage rain test equipment according to claim 5, characterized in that: An air pump (15) is installed on the upper surface of the outer shell (5). The output end of the air pump (15) passes through the outer shell (5) and extends into the interior of the outer shell (5) for pressurizing the interior of the outer shell (5).

7. The through-passage rain test equipment according to claim 1, characterized in that: A control box (17) is mounted on the outer casing (5).

8. The through-passage rain test equipment according to claim 1, characterized in that: Each of the portal frames (6) is fixedly connected with multiple connecting plates (11), and each connecting plate (11) is threaded with bolts. Both portal frames (6) are installed inside the outer shell (5) through connecting plates (11) and bolts.

9. The through-passage rain test equipment according to claim 1, characterized in that: The spraying device also includes a water supply pipe for providing a high-pressure water source. The input end of each spraying pipe (7) is connected to the water supply pipe, and each translation platform (2) is provided with multiple water leakage holes.

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