Durability testing system for rail train braking systems

Abstract

This utility model provides a durability testing system for a rail train braking system, relating to the technical field of urban rail transit vehicle testing. The durability testing system includes: a base plate; an angle adjustment assembly, one end of which is connected to the base plate; a base plate, connected to the other end of the angle adjustment assembly, configured to rotate relative to the base plate under the drive of the angle adjustment assembly to adjust the angle between the plane of the base plate and the plane of the base plate; a test platform, disposed on the base plate, configured to support the braking system of the rail train; and at least one pair of vibration simulation components, connected between the base plate and the test platform and located on both sides of the test platform, configured to drive the test platform to vibrate relative to the base plate when the angle adjustment assembly adjusts the base plate to different left and right tilt angles relative to the base plate, thereby simulating the vibration load experienced by the rail train when traveling at different left and right tilt angles, and thus testing the durability of the braking system.

Description

Technical Field

[0001] This utility model relates to the technical field of urban rail transit vehicle testing, and more specifically, to a durability testing system for rail train braking systems. Background Technology

[0002] Urban rail transit, as a key component of modern urban public transportation, plays an irreplaceable role in alleviating urban traffic congestion and reducing environmental pollution due to its advantages of efficiency, convenience, and large capacity. With the acceleration of urbanization, the operating mileage of urban rail transit is constantly increasing, and passenger volume is continuously rising, which places more stringent demands on the safety and reliability of rail trains. As the core guarantee for the safe operation of rail trains, the braking system's performance directly affects passenger safety and operational stability; therefore, conducting comprehensive and in-depth durability tests on the braking system is of great significance.

[0003] Currently, existing durability testing devices for rail train braking systems have shortcomings in evaluating braking system performance. Although these devices can simulate the performance of the braking system under normal braking operations, such as the braking process at different speeds and monitor key parameters such as braking distance and braking force, their ability to simulate the vibrations experienced by rail trains in actual operation is very limited. This makes it difficult to fully detect and resolve faults caused by vibration factors in the braking system during actual use during the testing phase, increasing safety risks during rail train operation. Utility Model Content

[0004] In view of this, in order to solve at least one of the technical problems in the prior art, the present invention provides a durability testing system for a rail train braking system, which can simulate the vibration loads experienced by a rail train when it travels at different left and right tilt angles, thereby testing the durability of the braking system and ensuring the comprehensiveness of the durability test.

[0005] One aspect of this utility model provides a durability testing system for a railcar braking system, comprising: a base plate; an angle adjustment assembly, one end of which is connected to the base plate; a base plate, connected to the other end of the angle adjustment assembly, configured to rotate relative to the base plate under the drive of the angle adjustment assembly to adjust the angle between the plane of the base plate and the plane of the base plate; a test platform disposed on the base plate and configured to support the braking system of the railcar; and at least one pair of vibration simulation components connected between the base plate and the test platform and located on both sides of the test platform, configured to drive the test platform to vibrate relative to the base plate when the angle adjustment assembly adjusts the base plate to different left and right tilt angles relative to the base plate, thereby simulating the vibration load experienced by the railcar when traveling at the different left and right tilt angles, and thus testing the durability of the braking system.

[0006] According to some embodiments of the present invention, each of the above-mentioned vibration simulation components includes: a first mounting plate, mounted on the above-mentioned base plate; a first driving mechanism, one end of the first driving mechanism being connected to the first mounting plate; and a transmission mechanism, one end of the transmission mechanism being connected to the output end of the first driving mechanism, the other end of the transmission mechanism being slidably connected to the above-mentioned test platform, the transmission mechanism being configured to drive the above-mentioned test platform to rise or fall under the drive of the first driving mechanism.

[0007] According to some embodiments of the present invention, the first driving mechanism includes: a first driving motor, one end of the first driving shaft of the first driving motor passing through the first mounting plate; and a connecting arm, one end of the connecting arm being connected to the first driving shaft and configured to rotate around the first driving shaft under the drive of the first driving shaft.

[0008] According to some embodiments of the present invention, two grooves are formed on the substrate, and the two grooves extend along the length of the test platform on both sides of the test platform.

[0009] According to some embodiments of the present invention, the transmission mechanism includes: a transmission arm, one end of which is rotatably connected to the other end of the connecting arm; a slider, rotatably connected to the other end of the transmission arm, configured to reciprocate along the slide groove under the drive of the transmission arm, the slider having a through groove, the extension direction of the through groove being inclined to the plane of the substrate; and a guide portion, which protrudes outward from the test platform along the width direction into the through groove and slides with the through groove, so as to drive the test platform to rise or fall during the sliding of the slider along the slide groove.

[0010] According to some embodiments of the present invention, through holes are provided at the four vertices of the substrate. The durability testing system further includes four guide rods. The four guide rods are disposed on the side of the test platform facing the substrate where the through holes are provided, and the four guide rods are respectively arranged at the four vertices of the test platform, so that they slide and cooperate with the four through holes respectively when the test platform rises or falls, so as to provide guidance for the test platform.

[0011] According to some embodiments of the present invention, the angle adjustment assembly includes: a second drive mechanism; a pair of second mounting plates, which are installed parallel to each other at intervals on the base plate; a rotating shaft, which is rotatably connected between the pair of second mounting plates, and one end of the rotating shaft is connected to the output end of the second drive mechanism to rotate under the drive of the second drive mechanism; and a support member, one end of which is sleeved on the outside of the rotating shaft, and the other end of which is connected to the base plate to change the angle at which the base plate is tilted relative to the base plate under the drive of the rotating shaft.

[0012] According to some embodiments of the present invention, the second driving mechanism includes: a third mounting plate disposed on the base plate; a second driving motor mounted on the third mounting plate; a screw connected to the second driving shaft of the second driving motor to rotate under the drive of the second driving motor; and a worm gear sleeved on the outside of the rotating shaft and meshing with the screw to drive the support member, the base plate and the test platform to rotate together under the drive of the second driving motor.

[0013] According to some embodiments of the present invention, the durability testing system further includes: a buffer pad disposed on the top of the substrate, which is adapted to provide a buffering effect to the test platform when the test platform vibrates relative to the substrate.

[0014] According to some embodiments of the present invention, the durability testing system further includes: a water tank suitable for providing water; a connecting pipe, one end of which is connected to the water tank; and a water spray pipe disposed on the test platform and connected to the other end of the connecting pipe, wherein the water spray pipe has a plurality of water spray holes spaced apart, and the plurality of water spray holes are configured to spray water onto the surface of the test platform on which the braking system is mounted.

[0015] According to an embodiment of the present invention, a durability testing system for a rail train braking system includes an angle adjustment component, one end of which is connected to a base plate, and a base plate connected to the other end of the angle adjustment component. The base plate is configured to rotate relative to the base plate under the action of the angle adjustment component, thereby adjusting the angle between the plane of the base plate and the plane of the base plate. A test platform is disposed on the base plate and is configured to support the braking system of the rail train. At least one pair of vibration simulation components are connected between the base plate and the test platform and located on both sides of the test platform. The vibration simulation components are configured to drive the test platform to vibrate relative to the base plate when the angle adjustment component adjusts the base plate to different left and right tilt angles relative to the base plate, thereby simulating the vibration load experienced by the rail train when traveling at different left and right tilt angles, thus testing the durability of the braking system and ensuring the comprehensiveness of the durability test. Attached Figure Description

[0016] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a first-view perspective perspective view of a durability testing system for a railcar braking system according to an illustrative embodiment of the present invention.

[0018] Figure 2 This is a second-view perspective perspective view of a durability testing system for a railcar braking system according to an illustrative embodiment of the present invention.

[0019] Figure 3 This is a partially enlarged view of a vibration simulation component according to an illustrative embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional cross-sectional view according to an illustrative embodiment of the present invention.

[0021] In the accompanying drawings, the meanings of the reference numerals are as follows:

[0022] 1. Base plate;

[0023] 2. Angle adjustment component;

[0024] 20. Second drive mechanism;

[0025] 200. Third mounting plate;

[0026] 201. Second drive motor;

[0027] 202. Second drive shaft;

[0028] 203. Screw;

[0029] 204. Worm gear;

[0030] 21. Second mounting plate;

[0031] 22. Rotating shaft;

[0032] 23. Support components;

[0033] 3. Substrate;

[0034] 30. Slide groove;

[0035] 4. Test platform;

[0036] 5. Vibration simulation components;

[0037] 51. First mounting plate;

[0038] 52. First drive mechanism;

[0039] 520. Connecting arm;

[0040] 521. First drive motor;

[0041] 53. Transmission mechanism;

[0042] 530. Transmission arm;

[0043] 531. Slider;

[0044] 532. Guiding section;

[0045] 533. Through groove;

[0046] 6. Guide rod;

[0047] 7. Cushioning pad;

[0048] 8. Water spraying device;

[0049] 80. Water tank;

[0050] 81. Connecting pipe;

[0051] 82. Water spray pipe;

[0052] 820. Spray nozzle. Detailed Implementation

[0053] The embodiments of the present invention will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, numerous specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.

[0054] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0055] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0056] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).

[0057] To simulate the vibrations experienced by a railcar during actual operation, according to one aspect of the present invention, one end of an angle adjustment component is connected to a base plate, and the base plate is connected to the other end of the angle adjustment component. The base plate is configured to rotate relative to the base plate under the drive of the angle adjustment component, thereby adjusting the angle between the plane of the base plate and the plane of the base plate. A test platform is disposed on the base plate and is configured to support the braking system of the railcar. At least one pair of vibration simulation components are connected between the base plate and the test platform and located on both sides of the test platform. The vibration simulation components are configured to drive the test platform to vibrate relative to the base plate when the angle adjustment component adjusts the base plate to different left and right tilt angles relative to the base plate, thereby simulating the vibration load experienced by the railcar when it travels at different left and right tilt angles, thus testing the durability of the braking system and ensuring the comprehensiveness of the durability test.

[0058] Figure 1 This is a first-view perspective perspective view of a durability testing system for a railcar braking system according to an illustrative embodiment of the present invention. Figure 2 This is a second-view perspective perspective view of a durability testing system for a railcar braking system according to an illustrative embodiment of the present invention.

[0059] An embodiment of this utility model provides a durability testing system for a rail train braking system, comprising a base plate 1, an angle adjustment assembly 2, a base plate 3, a test platform 4, and at least one pair of vibration simulation assemblies 5. For example... Figure 1 and Figure 2As shown, one end of the angle adjustment component 2 is connected to the base plate 1, and the base plate 3 is connected to the other end of the angle adjustment component 2. The base plate 3 is configured to rotate relative to the base plate 1 under the action of the angle adjustment component 2, so as to adjust the angle between the plane on which the base plate 3 is located and the plane on which the base plate 1 is located. The test platform 4 is disposed on the base plate 3 and is configured to support the braking system of the rail train. At least one pair of vibration simulation components 5 are connected between the base plate 3 and the test platform 4 and are located on both sides of the test platform 4. The vibration simulation components 5 are configured to drive the test platform 4 to vibrate relative to the base plate 3 when the angle adjustment component 2 adjusts the base plate 3 to different left and right tilt angles relative to the base plate 1, so as to simulate the vibration load experienced by the rail train when it travels at different left and right tilt angles, thereby testing the durability of the braking system.

[0060] According to an embodiment of this utility model, the braking system of the rail train is fixed to the top of the test platform 4 by a quick-release clamp. The test platform 4 is provided with a brake line for braking the rail train. The end of the brake line is connected to the brake disc assembly of the simulated wheel. When the angle adjustment assembly 2 adjusts the base plate 3 to have different left and right tilt angles relative to the base plate 1, the vibration simulation assembly 5 drives the test platform 4 to vibrate relative to the base plate 3. The vibration of the test platform 4 relative to the base plate 3 is directly transmitted to the braking system through the quick-release clamp to simulate the vibration load experienced by the rail train when it travels at different left and right tilt angles, thereby testing the durability of the braking system and ensuring the comprehensiveness of the durability test.

[0061] According to an embodiment of the present invention, a sensor is provided between the quick-release clamp and the test platform 4. The sensor can detect the force change of the braking system during vibration, and the sensor can be a force sensor.

[0062] According to an embodiment of this utility model, at least one pair of vibration simulation components 5 are arranged between the substrate 3 and the test platform 4, and on both sides of the test platform 4, which can be used as follows: Figure 1 and Figure 2 As shown, two vibration simulation components 5 are set on opposite sides of the test platform 4, which can simulate the simultaneous front-to-back vibration of a rail train. Simultaneous front-to-back vibration can more comprehensively simulate the complex vibration situation of the braking system of the rail train during operation, making the test results more reliable and valuable for reference. Alternatively, four, six, or eight vibration simulation components 5 can be set on opposite sides of the test platform 4 according to the vibration amplitude simulated in the actual operation of the rail train.

[0063] According to an embodiment of the present invention, each vibration simulation component 5 includes a first mounting plate 51, a first driving mechanism 52, and a transmission mechanism 53. The first mounting plate 51 is mounted on the base plate 3. One end of the first driving mechanism 52 is connected to the first mounting plate 51. One end of the transmission mechanism 53 is connected to the output end of the first driving mechanism 52, and the other end of the transmission mechanism 53 is slidably connected to the test platform 4. The transmission mechanism 53 is configured to drive the test platform 4 to rise or fall under the drive of the first driving mechanism 52.

[0064] According to an embodiment of this utility model, the first mounting plate 51 is mounted on the surface of the substrate 3 facing the test platform 4. The transmission mechanism 53, driven by the first driving mechanism 52, causes the test platform 4 to rise or fall. The rise or fall of the test platform 4 is along... Figure 1 Moving in the Z direction can effectively simulate the vibration encountered by a train on an uneven road surface during actual operation.

[0065] Figure 3 This is a partially enlarged view of a vibration simulation component according to an illustrative embodiment of the present invention.

[0066] According to embodiments of the present invention, such as Figure 3 As shown, the first drive mechanism 52 includes a first drive motor 521 and a connecting arm 520. One end of the first drive shaft of the first drive motor 521 passes through the first mounting plate 51. One end of the connecting arm 520 is connected to the first drive shaft, and the connecting arm 520 is configured to rotate around the first drive shaft under its drive.

[0067] According to an embodiment of this utility model, the connecting arm 520 converts the rotation of the first drive shaft into a larger-range arc motion at the other end of the connecting arm 520 away from the first drive shaft. The first drive motor 521 provides driving force for the rotation of the connecting arm 520 around the first drive shaft. The rotation angle of the connecting arm 520 is controlled by the first drive motor 521, enabling precise control of both the rotation angle and the rotation speed. Furthermore, the connecting arm 520 responds quickly to the start, stop, or speed change of the first drive motor 521, exhibiting good dynamic response performance.

[0068] According to an embodiment of the present invention, two grooves 30 are formed on the substrate 3, and the two grooves 30 extend along the length of the test platform 4 on both sides of the test platform 4.

[0069] According to an embodiment of this utility model, two grooves 30 extend along the length direction of the test platform 4 on both sides of the test platform 4, and the length direction of the test platform 4 is as follows: Figure 1 The X direction shown ( Figure 1 The X direction is orthogonal to the Z direction.

[0070] According to an embodiment of the present invention, the groove 30 can limit the sliding direction of the slider 531 (the slider 531 is described in detail below), prevent the slider 531 from deviating during sliding, and ensure the stability and reliability of vibration simulation.

[0071] According to embodiments of the present invention, such as Figure 3 As shown, the transmission mechanism 53 includes a transmission arm 530, a slider 531, and a guide portion 532. One end of the transmission arm 530 is rotatably connected to the other end of the connecting arm 520. The slider 531 is rotatably connected to the other end of the transmission arm 530. The slider 531 is configured to slide back and forth along the slide groove 30 under the drive of the transmission arm 530. A through groove 533 is provided on the slider 531, and the extending direction of the through groove 533 is inclined to the plane where the substrate 3 is located. The guide portion 532 protrudes outward from the test platform 4 along the width direction into the through groove 533 and slides in cooperation with the through groove 533 to drive the test platform 4 to rise or fall during the sliding of the slider 531 along the slide groove 30.

[0072] According to an embodiment of this utility model, the width direction of the test platform 4 is as follows: Figure 1 The Y direction shown ( Figure 1 The X, Y, and Z directions are orthogonal to each other.

[0073] According to an embodiment of the present invention, one end of the transmission arm 530 is rotatably hinged to the other end of the connecting arm 520 (the other end of the connecting arm 520 away from the first drive shaft), and the slider 531 is hinged to the other end of the transmission arm 530. By starting the first drive motor 521 to drive the first drive shaft to rotate, the connecting arm 520 follows the rotation of the first drive shaft and rotates around the first drive shaft, and the transmission arm 530 pushes the slider 531 to slide back and forth in the slide groove 30.

[0074] According to an embodiment of the present invention, the two ends of the through groove 533 are constructed into an arc shape, which makes the sliding of the guide part 532 in the through groove 533 smoother, and at the same time, the shape of the guide part 532 plays a better limiting role.

[0075] According to an embodiment of this utility model, taking the end of the through groove 533 near the transmission arm 530 (left side) as an example, where the end of the through groove 533 near the transmission arm 530 is higher than the end of the through groove 533 away from the transmission arm 530 (right side), as shown in the example... Figure 1(Construction of the through groove 533) When the transmission arm 530 pushes the slider 531 to move to the right side of the slide groove 30, the guide part 532 located in the through groove 533 is squeezed and slides upward along the through groove 533, and the test platform 4 rises under the drive of the guide part 532. When the transmission arm 530 pulls the slider 531 to move to the left side of the slide groove 30, the guide part 532 located in the through groove 533 is squeezed in the opposite direction to the previous process and slides downward along the through groove 533, and the test platform 4 falls under the drive of the guide part 532 (the movement of the guide part 532 is a linear reciprocating movement in the Z direction). In this reciprocating motion, as the slider 531 slides back and forth along the slide groove 30, it drives the test platform 4 to rise or fall, thereby realizing the vibration of the test platform 4 relative to the base plate 3. This can effectively simulate the vibration situation encountered by the rail train on the uneven road surface during actual operation, thus enabling the performance of the braking system under vibration environment to be detected in the test stage and faults caused by vibration to be detected in advance.

[0076] According to an embodiment of this utility model, if the end of the through groove 533 near the transmission arm 530 (left side) is lower than the end of the through groove 533 away from the transmission arm 530 (right side), when the transmission arm 530 pushes the slider 531 to move to the right side of the slide groove 30, the guide portion 532 located in the through groove 533 is squeezed and slides down along the through groove 533, and the test platform 4 descends under the drive of the guide portion 532. When the transmission arm 530 pulls the slider 531 to move to the left side of the slide groove 30, the guide portion 532 located in the through groove 533 is squeezed in the opposite direction to the previous process and slides up along the through groove 533, and the test platform 4 rises under the drive of the guide portion 532 (the movement of the guide portion 532 is a linear reciprocating movement in the Z direction). This process repeats, and during the reciprocating sliding of the slider 531 along the slide groove 30, the test platform 4 is driven to rise or fall, thereby realizing the vibration of the test platform 4 relative to the substrate 3.

[0077] According to embodiments of the present invention, such as Figure 1 As shown, through holes are provided at the four vertices of the substrate 3. The durability testing system also includes four guide rods 6. The four guide rods 6 are disposed on the side of the test platform 4 facing the substrate 3 where the through holes are provided, and the four guide rods 6 are respectively arranged on the four vertices of the test platform 4, so that they slide and cooperate with the four through holes when the test platform 4 rises or falls, so as to provide guidance for the test platform 4.

[0078] According to an embodiment of the present invention, the outer walls of the four guide rods 6 slide in cooperation with the four through holes when the test platform 4 rises or falls. When the test platform 4 vibrates relative to the substrate 3, it ensures the smooth vibration of the test platform 4 and prevents the test platform 4 from shaking or tilting, so as to ensure the accuracy of the braking system test.

[0079] Figure 4This is a three-dimensional cross-sectional view according to an illustrative embodiment of the present invention.

[0080] According to embodiments of the present invention, such as Figure 1 and Figure 4 As shown, the angle adjustment assembly 2 includes a second drive mechanism 20, a pair of second mounting plates 21, a rotating shaft 22, and a support member 23. The pair of second mounting plates 21 are mounted parallel to each other on the base plate 1 with a gap between them. The rotating shaft 22 is rotatably connected between the pair of second mounting plates 21, and one end of the rotating shaft 22 is connected to the output end of the second drive mechanism 20 to rotate under the drive of the second drive mechanism 20. One end of the support member 23 is sleeved on the outside of the rotating shaft 22, and the other end of the support member 23 is connected to the base plate 3 to change the angle at which the base plate 3 is tilted relative to the base plate 1 under the drive of the rotating shaft 22.

[0081] According to an embodiment of this utility model, the rotating shaft 22 is rotatably connected between a pair of second mounting plates 21 via bearings. The support member 23 sleeved on the outside of the rotating shaft 22 can be one or two. Providing two support members 23 can provide more stable support for the substrate 3.

[0082] According to an embodiment of the present invention, the support member 23 changes the angle at which the substrate 3 is tilted relative to the base plate 1 under the drive of the rotating shaft 22. When the substrate 3 is adjusted to have different left and right tilt angles relative to the base plate 1, the vibration simulation component 5 drives the test platform 4 to vibrate relative to the substrate 3, which can simulate the vibration load experienced by a rail train when it travels at different left and right tilt angles.

[0083] According to embodiments of the present invention, such as Figure 4 As shown, the second drive mechanism 20 includes a third mounting plate 200, a second drive motor 201, a screw 203, and a worm gear 204. The third mounting plate 200 is disposed on the base plate 1. The second drive motor 201 is mounted on the third mounting plate 200. The screw 203 is connected to the second drive shaft 202 of the second drive motor 201 to rotate under the drive of the second drive motor 201. The worm gear 204 is sleeved on the outside of the rotating shaft 22 and meshes with the screw 203 to drive the support member 23, the base plate 3, and the test platform 4 to rotate together under the drive of the second drive motor 201.

[0084] According to an embodiment of this utility model, by starting the second drive motor 201, the second drive motor 201 drives the screw 203 to rotate around the second drive shaft 202 via the second drive shaft 202. The screw 203 drives the meshing worm gear 204 to rotate, causing the worm gear 204 to drive the rotating shaft 22 to rotate, thereby causing the rotating shaft 22 to drive the support member 23, the base plate 3, and the test platform 4 to rotate together, realizing the adjustment of the angle of the test platform 4. This can effectively simulate the working state of the braking system of a rail train at different travel angles (for example, simulating the situation where the rail is inclined when the rail train is turning), improving the comprehensiveness of the test.

[0085] According to an embodiment of the present invention, the durability testing system further includes a buffer pad 7. The buffer pad 7 is disposed on the top of the substrate 3, and the buffer pad 7 is adapted to provide a cushioning effect to the test platform 4 when it vibrates relative to the substrate 3.

[0086] According to an embodiment of the present invention, the material of the buffer pad 7 can be rubber, and the connection between the buffer pad 7 and the top of the substrate 3 can be by adhesive bonding.

[0087] According to an embodiment of this utility model, the buffer pad 7 can provide a buffering effect to the test platform 4 when it vibrates relative to the substrate 3, reducing the vibration transmitted from the test platform 4 to the substrate 3, thereby protecting the angle adjustment assembly 2 located below the substrate 3. Simultaneously, providing the buffer pad 7 on the top of the substrate 3 can simulate the buffering environment of the braking system installation location during actual operation of a rail train.

[0088] According to embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the durability testing system also includes a water spraying device 8, which includes a water tank 80, a connecting pipe 81, and a spray pipe 82. The water tank 80 is suitable for supplying water. One end of the connecting pipe 81 is connected to the water tank 80. The spray pipe 82 is disposed on the test platform 4 and is connected to the other end of the connecting pipe 81. The spray pipe 82 has a plurality of spray holes 820 spaced apart, and the plurality of spray holes 820 are configured to spray water onto the surface of the test platform 4 on which the braking system is mounted.

[0089] According to an embodiment of the present invention, a pump body is provided on the top of the water tank 80. The input end of the pump body is connected to the interior of the water tank 80, and the output end of the pump body is connected to the spray pipe 82 through a connecting pipe 81. The connecting pipe 81 is a retractable flexible hose.

[0090] According to an embodiment of this utility model, the water spray pipe 82 can be along the length direction of the test platform 4 (e.g., Figure 1 Installed in the X direction as shown.

[0091] According to an embodiment of this utility model, water is drawn from the water tank 80 by activating the pump body, transported to the spray pipe 82 through the connecting pipe 81, and sprayed onto the surface of the test platform 4 bearing the braking system through multiple spray holes 820. This can simulate the impact of vibration load on the braking system of the rail train in a rainy and humid environment, and further comprehensively test the durability of the braking system of the rail train under complex working conditions during actual operation.

[0092] According to an embodiment of the present invention, the power supply interface of the electrical equipment (first drive motor 521 and second drive motor 201) used in the present invention is connected to an external power supply system through a switch (not shown in the figure) and a wire (not shown in the figure), thereby achieving precise control.

[0093] It should be noted that the data processing system part in the embodiments of this utility model corresponds to the data processing method part in the embodiments of this utility model. The specific description of the data processing system part is referred to in the data processing method part, and will not be repeated here.

[0094] Those skilled in the art will understand that the features described in the various embodiments of this utility model can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments of this utility model can be combined and / or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

[0095] The embodiments of this utility model have been described above. However, these embodiments are merely illustrative and not intended to limit the scope of this utility model. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. This utility model does not depart from its scope, and those skilled in the art can make various substitutions and modifications, all of which should fall within the scope of this utility model.

Claims

1. A durability test system for a rail vehicle brake system, characterized by, include: Base plate; An angle adjustment component, one end of which is connected to the base plate; The substrate, connected to the other end of the angle adjustment assembly, is configured to rotate relative to the base plate under the drive of the angle adjustment assembly, so as to adjust the angle between the plane where the substrate is located and the plane where the base plate is located. The test platform, set on the substrate, is configured to support the braking system of the rail train; At least one pair of vibration simulation components, connected between the base plate and the test platform and located on both sides of the test platform, are configured to cause the test platform to vibrate relative to the base plate when the angle adjustment component adjusts the base plate to have different left and right tilt angles relative to the base plate, so as to simulate the vibration loads experienced by the rail train when it travels at the different left and right tilt angles, thereby testing the durability of the braking system.

2. The durability test system of claim 1, wherein Each of the vibration simulation components includes: A first mounting plate is mounted on the substrate; A first drive mechanism, one end of which is connected to the first mounting plate; A transmission mechanism, one end of which is connected to the output end of the first drive mechanism, and the other end of which is slidably connected to the test platform, is configured to drive the test platform to rise or fall under the drive of the first drive mechanism.

3. The durability test system of claim 2, wherein, The first driving mechanism includes: A first drive motor, one end of the first drive shaft of the first drive motor passes through the first mounting plate; A connecting arm, one end of which is connected to the first drive shaft, is configured to rotate about the first drive shaft under its drive.

4. The durability test system of claim 3, wherein Two grooves are formed on the substrate, and the two grooves extend along the length of the test platform on both sides of the test platform.

5. The durability test system of claim 4, wherein, The transmission mechanism includes: A transmission arm, one end of which is rotatably connected to the other end of the connecting arm; A slider is rotatably connected to the other end of the transmission arm and is configured to slide back and forth along the groove under the drive of the transmission arm. A through groove is provided on the slider, and the extension direction of the through groove is inclined to the plane where the substrate is located. The guide portion protrudes outward from the test platform along the width direction into the through groove and slides with the through groove to drive the test platform to rise or fall as the slider slides along the through groove.

6. The durability test system of claim 5, wherein, The substrate has through holes at all four vertices, and the durability testing system also includes: Four guide rods are provided on the side of the test platform facing the substrate where the through hole is provided, and the four guide rods are respectively arranged on the four vertices of the test platform, so that they slide with the four through holes when the test platform rises or falls, thereby providing guidance for the test platform.

7. The durability test system of claim 1, wherein The angle adjustment component includes: Second drive mechanism; A pair of second mounting plates are mounted parallel to the base plate at intervals; A rotating shaft is rotatably connected between a pair of second mounting plates, and one end of the rotating shaft is connected to the output end of the second drive mechanism to rotate under the drive of the second drive mechanism; A support member, one end of which is sleeved on the outside of the rotating shaft, and the other end of which is connected to the base plate, so as to change the angle at which the base plate is tilted relative to the bottom plate under the drive of the rotating shaft.

8. The durability test system of claim 7, wherein, The second drive mechanism includes: A third mounting plate is disposed on the base plate; The second drive motor is mounted on the third mounting plate; The screw is connected to the second drive shaft of the second drive motor so as to rotate under the drive of the second drive motor; A worm gear is sleeved on the outside of the rotating shaft and meshes with the screw to drive the support, the base plate and the test platform to rotate together under the drive of the second drive motor.

9. The durability test system of claim 1, wherein, Also includes: A buffer pad, disposed on top of the substrate, is adapted to provide a buffering effect to the test platform when the test platform vibrates relative to the substrate.

10. The durability test system of claim 1, wherein, Also includes: Water tank, suitable for supplying water; A connecting pipe, one end of which is connected to the water tank; A water spray pipe is installed on the test platform and connected to the other end of the connecting pipe. The water spray pipe has multiple water spray holes spaced apart, and the multiple water spray holes are configured to spray water onto the surface of the test platform on which the braking system is mounted.

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