A comprehensive test system for rail vehicle overturning experiment

Abstract

The present invention discloses a rail vehicle rollover test comprehensive test system, and the present invention relates to the rail vehicle technical field. The rail vehicle rollover test comprehensive test system, through the arrangement of an arc-shaped limit frame and a side limit plate, can complete the support and limit of the wheel body as the arc-shaped limit frame moves upward during operation, and limit the wheel body through the side limit plate, further improving the limiting effect of the wheel body. Compared with the traditional support method, it can ensure that the wheel body rotates quickly and stably inside the arc-shaped limit frame, and is used to record the parameter values ​​when the simulated test vehicle encounters different road conditions under the running state. Compared with the traditional test method, the test range is wider and the safety performance is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, in particular to a rail vehicle rollover experiment comprehensive test system. Background Art

[0002] In China, the overturning performance test of vehicles is mainly carried out by line tests in actual operation of rail vehicles. The various safety performance parameters are tested in actual operation of the vehicles, which has great limitations. Referring to the Chinese patent, the "Rail Vehicle Overturning Test Comprehensive Test System" with the announcement number "CN117470559A", the patent points out that the existing vehicle body overturning test device has a simple structure, a single overturning test function, and no systematic and comprehensive test system. It is not possible to conduct comprehensive safety parameter tests such as load reduction rate, flexibility coefficient, balance, center of gravity, twisting, etc. on the vehicle before leaving the factory and during maintenance. There are a series of problems such as incomplete testing methods, imperfect testing equipment, inability to conduct continuous tests, and low testing efficiency. First, the above-mentioned equipment records the performance values ​​of the vehicle when the wheels are at different heights by lifting the wheels, so as to calculate the safety parameters of the vehicle. However, the above-mentioned equipment still has defects when limiting the wheels, which makes it difficult to simulate the real parameters of the vehicle when the wheels are rotating rapidly and in different states. The detection effect is poor and the safety is low. In this regard, we propose a rail vehicle overturning test comprehensive test system to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a comprehensive test system for a rail vehicle rollover experiment, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rail vehicle overturning test comprehensive test system, including a machine body, both sides of the machine body are provided with a plurality of test track bodies, the plurality of test track bodies are spliced, and are used to support the wheel body of the test vehicle;

[0005] An arc-shaped limit frame is provided between the multiple sections of the test track body, which is used to limit the wheel body. A bottom driving frame is provided below the arc-shaped limit frame. A bottom lifting cylinder is fixed inside the bottom driving frame. A weighing sensor is fixed at the piston end of the bottom lifting cylinder. The arc-shaped limit frame is fixedly installed on the top surface of the weighing sensor. The weighing sensor and the arc-shaped limit frame can lift and detect multiple wheel bodies through the operation of the bottom lifting cylinder.

[0006] A pressure plate is provided inside the machine body, which can be moved downward during the inspection operation to pressurize the test vehicle so that the test vehicle can reach a specified load during the inspection.

[0007] Preferably, both sides of the interior of the machine body are provided with limit assemblies that are compatible with the arc-shaped limit frame, and the limit assemblies are used to be inserted into the arc-shaped limit frame to limit and lock the corresponding wheel body.

[0008] Preferably, the limit assembly includes a sliding frame, a side limit rod is slidably connected inside the sliding frame, an inner sliding rod is slidably connected inside the side limit rod, a side limit plate is fixedly installed at one end of the inner sliding rod close to the arc limit frame, limit rods are fixed on both sides of the side limit plate, the limit rods are used to insert into the arc limit frame to lock it, and a plurality of limit shafts are rotatably installed on the outer side of the side limit plate, and the limit shafts are used to limit the wheel body.

[0009] Preferably, the outer side of the side limit rod is fixedly sleeved with a drive sleeve, the interior of the drive sleeve is fixedly installed with a drive cylinder, and the piston end of the drive cylinder is fixedly connected to the side limit plate.

[0010] Preferably, a plurality of telescopic sleeve rods are fixedly installed inside the bottom driving frame, and ends of the plurality of telescopic sleeve rods are fixedly connected to the bottom of the weighing sensor.

[0011] Preferably, the ends of the multiple sections of the test track bodies are penetrated by receiving slots, and a concave connecting plug-in is provided between two adjacent test track bodies, both ends of the concave connecting plug-in are inserted into the corresponding receiving slots and slidably connected thereto, and both sides of the top surface of the arc-shaped limit frame are provided with limit slots that are compatible with the concave connecting plug-in.

[0012] Preferably, a plurality of spherical bodies are rotatably connected inside the arc-shaped limit frame to reduce friction between the wheel body and the arc-shaped limit frame.

[0013] Preferably, a plurality of fixing plates are fixedly installed between the weighing sensor and the arc-shaped limit frame, and tempered glass layers are fixedly installed on both sides of the body.

[0014] Preferably, a hydraulic cylinder is fixedly installed on the inner top surface of the body, which is used to drive the pressure plate to slide up and down inside the body, and a joint connector is fixedly installed on the end of the hydraulic cylinder, and a pressure sensor is fixedly installed on the bottom of the joint connector, and the pressure sensor is fixedly connected to the pressure plate.

[0015] Preferably, the hydraulic cylinder always remains perpendicular to the machine body.

[0016] The present invention provides a comprehensive test system for a rail vehicle rollover experiment. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The rail vehicle overturning experiment comprehensive test system, through the setting of the arc limit frame and the side limit plate, can move up with the arc limit frame during operation to complete the support and limit of the wheel body, and limit the side limit plate to further improve the limiting effect of the wheel body. Compared with the traditional support method, it can ensure that the wheel body rotates quickly and stably inside the arc limit frame, and is used to record the parameter values ​​of the simulated test vehicle when encountering different road conditions. Compared with the traditional test method, the test range is wider and the safety performance is further improved.

[0018] (2) The rail vehicle overturning experiment comprehensive test system can adjust the spacing of the test track body and the position of the arc limit frame according to the spacing of the wheel body during operation through the cooperation between the test track body and the concave connector to ensure the applicable range. At the same time, through the cooperation of the concave connector, it can ensure the entry and exit of the test vehicle and improve the operating stability of the wheel body during the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the machine body of the present invention;

[0021] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 For the present invention Figure 2 Side view;

[0023] Figure 5 It is a schematic diagram of the initial state structure of the limit assembly and the arc limit frame of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the operating state of the limit assembly and the arc limit frame of the present invention;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the arc-shaped limit frame of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1. body; 101. tempered glass layer; 2. test track body; 201. concave connecting plug; 202. storage slot; 3. hydraulic cylinder; 4. joint connecting piece; 401. pressure sensor; 5. pressure plate; 6. side limit rod; 601. inner slide rod; 7. slide frame; 8. side limit plate; 801. limit plug rod; 802. limit shaft; 9. drive shaft sleeve; 901. drive cylinder body; 10. wheel body; 11. bottom drive frame; 1101. telescopic sleeve rod; 1102. bottom lifting cylinder body; 12. arc limit frame; 1201. limit slot; 1202. spherical body; 13. weighing sensor; 1301. fixing plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 8 The present invention provides two technical solutions, which specifically include the following embodiments: Example

[0030] refer to Figure 1-Figure 3 A rail vehicle rollover test comprehensive test system includes a machine body 1, and multiple test track bodies 2 are arranged on both sides of the machine body 1. The multiple test track bodies 2 are spliced ​​and used to support the wheel bodies 10 of the test vehicle. The multiple test track bodies 2 are spliced ​​into one by bolts and used to adapt to the support operation of the wheel bodies 10 with different spacings. When in use, the external track is connected to the test track body 2, so that the wheel body 10 at the bottom of the test vehicle enters the machine body 1 along the test track body 2; enter the position to be tested;

[0031] For further reference, Figure 1-Figure 8, an arc-shaped limit frame 12 is provided between the multiple sections of the test track body 2, which is used to limit the wheel body 10 so that the wheel body 10 can rotate inside the arc-shaped limit frame 12, and a bottom driving frame 11 is provided below the arc-shaped limit frame 12, and a bottom lifting cylinder 1102 is fixed inside the bottom driving frame 11, and a weighing sensor 13 is fixed on the piston end of the bottom lifting cylinder 1102, and the arc-shaped limit frame 12 is fixedly installed on the top surface of the weighing sensor 13, and the weighing sensor 13 and the arc-shaped limit frame 12 can lift and detect multiple wheel bodies 10 through the operation of the bottom lifting cylinder 1102. After the test vehicle moves to the position to be tested, the wheel body 10 can be located directly above the arc-shaped limit frame 12, and as the bottom lifting cylinder 1102 runs, it can drive the arc-shaped limit frame 12 to move upward, and lift multiple wheel bodies 10, and according to the record of the lifting height of multiple wheel bodies 10 and the record of the weighing sensor 13, the performance detection of the test vehicle is realized;

[0032] Specifically, the above performance tests include weight test, load reduction rate test, balance test, etc., all of which are implemented with corresponding sensors. The above experimental parameters are recorded by existing sensor modules and will not be described in detail here.

[0033] For further reference, Figure 1-Figure 8 , both sides of the body 1 are provided with limit components that are compatible with the arc limit frame 12. The limit components are used to be inserted into the arc limit frame 12 to limit and lock the corresponding wheel body 10. When performing the test operation, the wheel body 10 is lifted up as the arc limit frame 12 moves up, and when the height of the arc limit frame 12 is kept flush with the limit components, the limit components are inserted into the arc limit frame 12 as they run, so that the wheel body 10 can be limited;

[0034] During the test, as the wheel body 10 rotates inside the corresponding arc-shaped limit frame 12, the performance parameters of the vehicle in the running state can be better simulated and tested;

[0035] During the test, the wheel body 10 is limited by the limit assembly, and the arc limit frame 12 can be quickly adjusted during the test, so that the wheel body 10 can quickly move up and down with the arc limit frame 12, so as to simulate the track distortion, potholes and other phenomena encountered by the test vehicle during operation, that is, the parameter values ​​of the test vehicle when encountering different road conditions can be tested and recorded, and the detection range is further improved. The limit operation is realized by the limit assembly, which can improve the test safety, avoid the phenomenon of falling off during the high-speed rotation of the wheel body 10, and ensure the operation effect;

[0036] Furthermore, a plurality of telescopic sleeves 1101 are fixedly installed inside the bottom driving frame 11, and the ends of the plurality of telescopic sleeves 1101 are fixedly connected to the weighing sensor 13. When the bottom lifting cylinder 1102 operates to drive the weighing sensor 13 to move upward, the plurality of telescopic sleeves 1101 can be extended to limit the weighing sensor 13, thereby ensuring the operation stability of the weighing sensor 13.

[0037] Furthermore, the ends of the multi-section test track bodies 2 are all penetrated with receiving slots 202, and a concave connection plug-in 201 is provided between two adjacent test track bodies 2, both ends of the concave connection plug-in 201 are inserted into the corresponding receiving slots 202 and slidably connected thereto, and both sides of the top surface of the arc-shaped limit frame 12 are provided with limiting slots 1201 adapted to the concave connection plug-in 201, and the concave connection plug-in 201 is used to support and limit the wheel body 10. When the arc-shaped limit frame 12 is in the initial position, refer to Figure 5 At this time, when the wheel body 10 moves above the test track body 2, the concave connection plug-in 201 can be used to facilitate the wheel body 10 to reach the test position. When the wheel body 10 reaches the test position, as the arc-shaped limit frame 12 moves up and contacts the wheel body 10, the concave connection plug-in 201 can enter the limit slot 1201. Figure 6-Figure 8 The arc-shaped limiting frame 12 is in the jacking state, and as the concave connecting plug 201 enters the limiting slot 1201, the inner part can further enhance the supporting and limiting effect of the wheel body 10, and at the same time facilitate the entry and exit of the test vehicle;

[0038] Furthermore, a plurality of spherical bodies 1202 are rotatably connected inside the arc-shaped limit frame 12 to reduce the friction between the wheel body 10 and the arc-shaped limit frame 12 .

[0039] Embodiment 2: Based on Embodiment 1, refer to Figure 1-Figure 3 A rail vehicle rollover test comprehensive test system includes a machine body 1, and multiple test track bodies 2 are arranged on both sides of the machine body 1. The multiple test track bodies 2 are spliced ​​and used to support the wheel bodies 10 of the test vehicle. The multiple test track bodies 2 are spliced ​​into one by bolts and used to adapt to the support operation of the wheel bodies 10 with different spacings. When in use, the external track is connected to the test track body 2, so that the wheel body 10 at the bottom of the test vehicle enters the machine body 1 along the test track body 2; enter the position to be tested;

[0040] For further reference, Figure 1-Figure 8, an arc-shaped limit frame 12 is provided between the multiple sections of the test track body 2, which is used to limit the wheel body 10 so that the wheel body 10 can rotate inside the arc-shaped limit frame 12, and a bottom driving frame 11 is provided below the arc-shaped limit frame 12, and a bottom lifting cylinder 1102 is fixed inside the bottom driving frame 11, and a weighing sensor 13 is fixed on the piston end of the bottom lifting cylinder 1102, and the arc-shaped limit frame 12 is fixedly installed on the top surface of the weighing sensor 13, and the weighing sensor 13 and the arc-shaped limit frame 12 can lift and detect multiple wheel bodies 10 through the operation of the bottom lifting cylinder 1102. After the test vehicle moves to the position to be tested, the wheel body 10 can be located directly above the arc-shaped limit frame 12, and as the bottom lifting cylinder 1102 runs, it can drive the arc-shaped limit frame 12 to move upward, and lift multiple wheel bodies 10, and according to the record of the lifting height of multiple wheel bodies 10 and the record of the weighing sensor 13, the performance detection of the test vehicle is realized;

[0041] Specifically, the above performance tests include weight test, load reduction rate test, balance test, etc., all of which are implemented with corresponding sensors. The above experimental parameters are recorded by existing sensor modules and will not be described in detail here.

[0042] Furthermore, a pressure plate 5 is provided inside the body 1, which can move downward when performing a detection operation to pressurize the test vehicle so that the test vehicle can reach a specified load during the detection. During the test, the pressure plate 5 moves downward to contact the test vehicle so that the test vehicle reaches a full load state or a specified load during the detection operation, and then the parameter value is recorded, thereby improving the detection effect of the test vehicle in different states and increasing the detection range;

[0043] For further reference, Figure 1-Figure 8 , both sides of the body 1 are provided with limit components that are compatible with the arc limit frame 12. The limit components are used to be inserted into the arc limit frame 12 to limit and lock the corresponding wheel body 10. When performing the test operation, the wheel body 10 is lifted up as the arc limit frame 12 moves up, and when the height of the arc limit frame 12 is kept flush with the limit components, the limit components are inserted into the arc limit frame 12 as they run, so that the wheel body 10 can be limited;

[0044] During the test, as the wheel body 10 rotates inside the corresponding arc-shaped limit frame 12, the performance parameters of the vehicle in the running state can be better simulated and tested;

[0045] During the test, the wheel body 10 is limited by the limit assembly, and the arc limit frame 12 can be quickly adjusted during the test, so that the wheel body 10 can quickly move up and down with the arc limit frame 12, so as to simulate the track distortion, potholes and other phenomena encountered by the test vehicle during operation, that is, the parameter values ​​of the test vehicle when encountering different road conditions can be tested and recorded, and the detection range is further improved. The limit operation is realized by the limit assembly, which can improve the test safety, avoid the phenomenon of falling off during the high-speed rotation of the wheel body 10, and ensure the operation effect;

[0046] Furthermore, a plurality of telescopic sleeves 1101 are fixedly installed inside the bottom driving frame 11, and the ends of the plurality of telescopic sleeves 1101 are fixedly connected to the bottom of the weighing sensor 13. When the bottom lifting cylinder 1102 operates to drive the weighing sensor 13 to move upward, the plurality of telescopic sleeves 1101 can be extended to limit the weighing sensor 13, thereby ensuring the operation stability of the weighing sensor 13.

[0047] Furthermore, the ends of the multi-section test track bodies 2 are all penetrated with receiving slots 202, and a concave connection plug-in 201 is provided between two adjacent test track bodies 2, both ends of the concave connection plug-in 201 are inserted into the corresponding receiving slots 202 and slidably connected thereto, and both sides of the top surface of the arc-shaped limit frame 12 are provided with limiting slots 1201 adapted to the concave connection plug-in 201, and the concave connection plug-in 201 is used to support and limit the wheel body 10. When the arc-shaped limit frame 12 is in the initial position, refer to Figure 5 At this time, when the wheel body 10 moves above the test track body 2, the concave connection plug-in 201 can be used to facilitate the wheel body 10 to reach the test position. When the wheel body 10 reaches the test position, as the arc-shaped limit frame 12 moves up and contacts the wheel body 10, the concave connection plug-in 201 can enter the limit slot 1201. Figure 6-Figure 8 The arc-shaped limiting frame 12 is in the jacking state, and as the concave connecting plug 201 enters the limiting slot 1201, the inner part can further enhance the supporting and limiting effect of the wheel body 10, and at the same time facilitate the entry and exit of the test vehicle;

[0048] Furthermore, a plurality of spherical bodies 1202 are rotatably connected inside the arc-shaped limit frame 12 to reduce the friction between the wheel body 10 and the arc-shaped limit frame 12;

[0049] Furthermore, a plurality of fixing plates 1301 are fixedly installed between the weighing sensor 13 and the arc-shaped limit frame 12, and a tempered glass layer 101 is fixedly installed on both sides of the body 1;

[0050] Furthermore, a hydraulic cylinder 3 is fixedly installed on the inner top surface of the machine body 1, which is used to drive the pressure plate 5 to slide up and down inside the machine body 1. A joint connector 4 is fixedly installed on the end of the hydraulic cylinder 3, and a pressure sensor 401 is fixedly installed on the bottom of the joint connector 4. The hydraulic cylinder 3 and the machine body 1 are always kept vertical. The pressure sensor 401 is fixedly connected to the pressure plate 5. The joint connector 4 is an existing device, which is used to rotate when the pressure plate 5 contacts the test vehicle. During operation, the test vehicle is pressurized through the pressure plate 5, and a constant pressure is maintained when the wheel body 10 is lifted to cause the test vehicle to deviate, so as to realize the recording of the values ​​of the test vehicles with different loads in different states, and further improve the detection accuracy and detection range of the equipment;

[0051] Specifically, the limiting assembly includes a sliding frame 7, a side limiting rod 6 is slidably connected inside the sliding frame 7, an inner sliding rod 601 is slidably connected inside the side limiting rod 6, a side limiting plate 8 is fixedly installed at one end of the inner sliding rod 601 close to the arc limiting frame 12, both sides of the side limiting plate 8 are fixed with limiting plug rods 801, the limiting plug rod 801 is used to insert into the arc limiting frame 12 to lock it, the arc limiting frame 12 is provided with a plurality of sockets that are compatible with the limiting plug rod 801, and a plurality of limiting shafts 802 are rotatably installed on the outer side of the side limiting plate 8, and the limiting shaft 802 is used to lock the wheel body 10 When the arc limit frame 12 moves up to be coaxial with the side limit plate 8, as the inner slide bar 601 extends, it can drive the side limit plate 8 to operate, so that the limit plug rod 801 is inserted into the insertion hole opened inside the arc limit frame 12. At this time, multiple limit shafts 802 can be located on the outside of the wheel body 10 to achieve the limiting operation of the wheel body 10. After the limiting is completed, as the arc limit frame 12 continues to move up, it can drive the side limit rod 6 to slide inside the sliding frame 7, which avoids affecting the weighing on the one hand, and can ensure the lifting height of different wheel bodies 10 at the same time, thereby improving the operation effect of the equipment;

[0052] Specifically, the outer side of the side limit rod 6 is fixedly sleeved with a drive sleeve 9, and the interior of the drive sleeve 9 is fixedly installed with a drive cylinder 901. The piston end of the drive cylinder 901 is fixedly connected to the side limit plate 8. The drive cylinder 901 is used to drive the side limit plate 8 and the inner slide rod 601 to operate, so that the inner slide rod 601 inside the side limit rod 6 extends.

[0053] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0054] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A rail vehicle rollover test comprehensive test system, comprising a body (1), characterized in that: A multi-section test track body (2) is provided on both sides of the interior of the machine body (1); the multi-section test track body (2) is spliced ​​and used to support a wheel body (10) of a test vehicle; An arc-shaped limit frame (12) is provided between the multiple sections of the test track body (2) for limiting the wheel body (10); a bottom driving frame (11) is provided below the arc-shaped limit frame (12); a bottom lifting cylinder (1102) is fixed inside the bottom driving frame (11); a weighing sensor (13) is fixed at the piston end of the bottom lifting cylinder (1102); the arc-shaped limit frame (12) is fixedly mounted on the top surface of the weighing sensor (13); the weighing sensor (13) and the arc-shaped limit frame (12) can lift and test multiple wheel bodies (10) through the operation of the bottom lifting cylinder (1102); The body (1) is provided with a pressure plate (5) inside, which can be moved downward during the inspection operation to apply pressure to the test vehicle so that the test vehicle can reach a specified load during the inspection; Both sides of the body (1) are provided with limit assemblies that are compatible with the arc-shaped limit frame (12), and the limit assemblies are used to be inserted into the arc-shaped limit frame (12) to limit and lock the corresponding wheel body (10); The limiting assembly comprises a sliding frame (7), the sliding frame (7) is slidably connected to a side limiting rod (6), the side limiting rod (6) is slidably connected to an inner sliding rod (601), one end of the inner sliding rod (601) close to the arc-shaped limiting frame (12) is fixedly mounted with a side limiting plate (8), both sides of the side limiting plate (8) are fixed with limiting rods (801), the limiting rods (801) are used to be inserted into the arc-shaped limiting frame (12) to lock it, and a plurality of limiting shafts (802) are rotatably mounted on the outer side of the side limiting plate (8), and the limiting shafts (802) are used to limit the wheel body (10); The ends of the multiple sections of the test track bodies (2) are all provided with receiving slots (202), and a concave connection plug-in (201) is provided between two adjacent test track bodies (2), both ends of the concave connection plug-in (201) are inserted into the corresponding receiving slots (202) and slidably connected thereto, and both sides of the top surface of the arc-shaped limit frame (12) are provided with limit slots (1201) that are compatible with the concave connection plug-in (201).

2. A rail vehicle overturning test comprehensive test system according to claim 1, characterized in that: The outer side of the side limit rod (6) is fixedly sleeved with a drive shaft sleeve (9), the interior of the drive shaft sleeve (9) is fixedly mounted with a drive cylinder (901), and the piston end of the drive cylinder (901) is fixedly connected to the side limit plate (8).

3. A rail vehicle overturning test comprehensive test system according to claim 1, characterized in that: A plurality of telescopic sleeve rods (1101) are fixedly installed inside the bottom driving frame (11), and ends of the plurality of telescopic sleeve rods (1101) are fixedly connected to the weighing sensor (13).

4. A rail vehicle overturning test comprehensive test system according to claim 1, characterized in that: The arc-shaped limiting frame (12) is rotatably connected to a plurality of spherical bodies (1202) inside, and is used to reduce friction between the wheel body (10) and the arc-shaped limiting frame (12).

5. A rail vehicle overturning test comprehensive test system according to claim 1, characterized in that: A plurality of fixing plates (1301) are fixedly mounted between the weighing sensor (13) and the arc-shaped limiting frame (12), and tempered glass layers (101) are fixedly mounted on both sides of the machine body (1).

6. A rail vehicle overturning test comprehensive test system according to claim 1, characterized in that: A hydraulic cylinder (3) is fixedly mounted on the inner top surface of the machine body (1) for driving the pressure plate (5) to slide up and down inside the machine body (1); a joint connecting piece (4) is fixedly mounted on the end of the hydraulic cylinder (3); and a pressure sensor (401) is fixedly mounted on the bottom of the joint connecting piece (4); the pressure sensor (401) is fixedly connected to the pressure plate (5).

7. A rail vehicle overturning test comprehensive test system according to claim 6, characterized in that: The hydraulic cylinder (3) and the machine body (1) are always kept vertical.

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