Rail transit rail turnout strength test simulation device

Abstract

The application discloses a rail transit steel rail turnout strength test simulation device, which comprises a basic support assembly, the basic support assembly comprises a fixed base, one side of the fixed base is provided with a directional support mechanism, the opposite end surfaces of the two groups of directional support mechanisms are rotatably provided with outer sleeves, one side of the fixed base is provided with a track wheel set, one side of the outer sleeve is provided with a load-bearing positioning assembly, the load-bearing positioning assembly comprises a load-bearing plate, one side of the load-bearing plate away from the fixed base is provided with a positioning column and a positioning groove, the bottom of the load-bearing plate is provided with a visual detection system, and the load-bearing plate is provided with a storage detection assembly on one side. Thus, the test unit is accurately sent to the rail turnout test point for fitting and measurement, so that the test and data collection of the structure strength, deformation and other key performances of the rail transit steel rail turnout are completed under the condition of simulating the real train load. The storage design improves the site adaptability and transportation convenience of the device.

Description

Technical Field

[0001] This application relates to the technical field of rail transit turnout testing equipment, and more particularly to a rail transit turnout strength test simulation device. Background Technology

[0002] Rail transit steel turnouts are core components for train turning and lane changing, and their structural strength directly affects train operation safety. Currently, turnout strength tests mostly adopt static loading + manual measurement methods: either applying the rated load to the turnout in the laboratory using a fixed hydraulic press, which cannot simulate the dynamic impact of train operation; or relying on manual point-by-point testing with instruments on site, which is inefficient and has large data errors (significantly affected by human operation).

[0003] The existing technology has three limitations: First, the load simulation is distorted, and static loading is difficult to reproduce the coupling effect of vertical pressure and lateral impact when a train passes through a turnout; second, the detection flexibility is insufficient, fixed equipment cannot adapt to the rapid switching of turnouts of different specifications, and the sensor deployment and data acquisition rely on manual labor, making it difficult to achieve simultaneous monitoring of multi-dimensional parameters (deformation, displacement, stress); third, the equipment transportation is restricted, large test devices need to be disassembled and transported, and on-site reassembly is time-consuming, making it difficult to meet the efficient maintenance requirements of "inspection while operating" railway lines. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this application is to provide a simulation device for the strength test of steel turnouts in rail transit, including a basic support assembly. The basic support assembly includes a fixed base, a directional support mechanism is provided on one side of the fixed base, and two sets of directional support mechanisms are provided with outer sleeves rotatably on opposite end faces. A rail wheel set is provided on one side of the fixed base. The outer sleeve is provided with a load-bearing positioning component on one side. The load-bearing positioning component includes a load-bearing plate. The side of the load-bearing plate opposite to the fixed base is provided with a positioning post and a positioning groove. The bottom of the load-bearing plate is provided with a vision inspection system. It also includes a retractable detection component disposed on one side of the load-bearing plate. The retractable detection component includes a drive unit. A steering mechanism is provided on the side of the load-bearing plate away from the drive unit. The output end of the drive unit is connected to the steering mechanism. A detection mechanism is provided in the steering mechanism in a lifting manner.

[0006] The rail transit steel turnout strength testing simulation equipment disclosed in this application uses a movable base to carry the simulated load and a lifting and retractable testing mechanism to precisely deliver the test unit to the turnout test point for fitting and measurement. This allows for the testing and data acquisition of key performance parameters such as structural strength and deformation of rail transit steel turnouts under simulated real train loads. Its retractable design improves the equipment's site adaptability and ease of transport.

[0007] In addition, the rail transit steel turnout strength test simulation equipment proposed in the application may also have the following additional technical features: Specifically, the steering mechanism includes an outer frame disposed on one side of the load-bearing plate, a transmission component connected to the output end of the drive unit is disposed inside the outer frame, and a baffle is disposed inside the outer frame on one side opposite to the transmission component.

[0008] Specifically, the transmission component includes a transmission shaft rotatably disposed inside the outer frame, the transmission shaft being disposed at the output end of the drive unit, an outer sleeve being fitted on the outer wall of the transmission shaft, and pressure rods being symmetrically arranged on the outer wall of the outer sleeve.

[0009] Specifically, the testing mechanism includes a lifting and resetting component that is vertically mounted inside the outer frame. The side of the lifting and resetting component that is away from the inner wall of the outer frame is connected to a support body. A testing unit is provided inside the support body. A transparent window and a positioning plate are provided on the support body. An opening and closing button for controlling the testing unit is installed on the positioning plate.

[0010] Specifically, the test unit includes a push drive installed inside the support body, the output end of the push drive is connected to an external test plate, and the external test plate has a protrusion extending to one side outside the support body.

[0011] Specifically, the support mechanism includes an outer shell disposed on the top wall of the fixed base, a movable rod is movably disposed inside the outer shell, and a handle is provided on the movable rod extending to the outside of the outer shell.

[0012] Specifically, the two sets of pressure rods are symmetrically arranged at an included angle on the upper and lower sides of the support body, and the maximum distance between the outer ring surface and the pressure rod is less than the minimum distance between the outer ring surface and the inner wall of the outer frame.

[0013] Specifically, the protrusion and the outer test plate are an integral structure, and a vertical notch is left between the protrusion and the outer test plate.

[0014] Specifically, the lifting and resetting component includes an outer sleeve disposed on the top wall of the support body, a guide rod movably disposed inside the outer sleeve, an elastic element sleeved on the outer side of the guide rod, and the two ends of the elastic element are respectively connected to the outer sleeve and the support body.

[0015] Beneficial effects: By using a movable base to carry simulated loads and a lifting and retractable testing mechanism, the test unit is precisely delivered to the test point of the rail turnout for fitting and measurement. This allows for the testing and data collection of key performance parameters such as structural strength and deformation of rail transit steel turnouts under simulated real train loads. Its retractable design improves the equipment's site adaptability and ease of transport.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure of the storage-type detection component in this application; Figure 3 This is a schematic diagram of the internal structure of the outer frame of this application; Figure 4 This is a schematic diagram of the transmission component structure in this application; Figure 5 This is a schematic diagram of the testing organization structure for this application; Figure 6 This is a schematic diagram of the test unit structure of this application.

[0018] As shown in the figure: 10. Basic support assembly; 101. Fixed base; 102. Orientation support mechanism; 1021. Outer shell; 1022. Movable rod frame; 1023. Handle; 103. Outer sleeve; 104. Track wheel set; 20. Load-bearing positioning assembly; 201. Load-bearing plate; 202. Positioning column; 203. Positioning groove; 204. Vision inspection system; 30. Retractable inspection assembly; 301. Drive unit; 302. Rotary... 3021, outer frame; 3022, transmission component; 30221, transmission shaft; 30222, outer ring; 30223, pressure rod; 3023, baffle; 303, detection mechanism; 3031, support body; 3032, lifting and resetting component; 3033, testing unit; 30331, push drive; 30332, outer test plate; 30333, protrusion; 3034, transparent window; 3035, positioning plate. Detailed Implementation

[0019] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the appended spirit and connotation.

[0020] The following description, in conjunction with the accompanying drawings, describes a simulation device for testing the strength of steel turnouts in rail transit, according to an embodiment of this application.

[0021] like Figure 1-6 As shown, the rail transit steel turnout strength test simulation equipment of this application embodiment includes a basic support component 10. The basic support component 10 includes a fixed base 101. A directional support mechanism 102 is provided on one side of the fixed base 101. An outer sleeve 103 is rotatably provided on the opposite end faces of the two sets of directional support mechanisms 102. A rail wheel set 104 is provided on one side of the fixed base 101.

[0022] It should be noted that the fixed base 101 of this application is connected to the track wheel assembly 104 via an axle. The track wheel assembly 104 is the same as the rail wheel assembly formed on the track, and it is set according to the track to be tested to ensure stable movement on the track to be tested. The outer sleeve 103 is connected to the directional support mechanism 102 via a shaft, and a bearing is provided between the directional support mechanism 102 and the shaft. The directional support mechanism 102 can rotate around the shaft as the center. During storage and when not being tested, the directional support mechanism 102 drives the storage-type detection component 30 to rotate, thereby reducing the space occupied.

[0023] The outer sleeve 103 is provided with a load-bearing positioning component 20 on one side. The load-bearing positioning component 20 includes a load-bearing plate 201. The side of the load-bearing plate 201 away from the fixed base 101 is provided with a positioning post 202 and a positioning groove 203. The bottom of the load-bearing plate 201 is provided with a vision inspection system 204.

[0024] It should be noted that the load-bearing positioning component 20 connected to one side of the outer sleeve 103, according to the weight that the track to be tested can bear, installs a weight on the load-bearing plate 201. The weight is mounted on the positioning post 202 for limiting, and the positioning groove 203 further limits the weight. A clamping rod can be added to the positioning groove 203, with the other end of the clamping rod abutting against the surface of the weight. The bottom vision inspection system 204 adopts a high-definition camera and a visual intelligent recognition system in the prior art to measure the distance between the track and the track in real time during the movement test.

[0025] It also includes a retractable detection component 30 disposed on one side of the load-bearing plate 201. The retractable detection component 30 includes a drive unit 301. A steering mechanism 302 is provided on the side of the load-bearing plate 201 away from the drive unit 301. The output end of the drive unit 301 is connected to the steering mechanism 302. A detection mechanism 303 is provided in the steering mechanism 302 in a lifting manner.

[0026] It should be noted that the drive unit 301 in the retractable detection component 30 adopts a servo motor. When the stepper motor is running, it drives the mechanism inside the steering mechanism 302 to rotate back and forth. The steering mechanism 302 cooperates with the detection mechanism 303 to enable the detection mechanism 303 to measure the track turnout during detection.

[0027] In one embodiment of this application, such as Figure 2 and Figure 3 As shown, the steering mechanism 302 includes an outer frame 3021 disposed on one side of the load-bearing plate 201. Inside the outer frame 3021, there is a transmission component 3022 connected to the output end of the drive unit 301. Inside the outer frame 3021, there is a baffle 3023 on one side of the transmission component 3022.

[0028] It should be noted that in the steering mechanism 302 described in this embodiment, the outer frame 3021 is mounted on the load-bearing plate 201, and the transmission component 3022 rotates in the outer frame 3021. The output end of the drive unit 301 is connected to the transmission component 3022 through a reducer. When the transmission component 3022 rotates, it abuts against the upper and lower surfaces of the detection mechanism 303.

[0029] In one embodiment of this application, such as Figure 3 and Figure 4 As shown, the transmission component 3022 includes a transmission shaft 30221 rotatably disposed inside the outer frame 3021. The transmission shaft 30221 is disposed at the output end of the drive unit 301. An outer sleeve ring 30222 is sleeved on the outer wall of the transmission shaft 30221. Pressure rods 30223 are symmetrically disposed on the outer wall of the outer sleeve ring 30222.

[0030] It should be noted that the drive shaft 30221 rotates as driven by the drive unit 301, while the outer ring 30222 rotates synchronously on the drive shaft 30221, and drives the pressure rod 30223 to rotate and press against the upper and lower surfaces of the detection mechanism 303.

[0031] In one embodiment of this application, such as Figure 3 and Figure 5As shown, the testing mechanism 303 includes a lifting and resetting component 3032 that is vertically mounted inside the outer frame 3021. The side of the lifting and resetting component 3032 facing away from the inner wall of the outer frame 3021 is connected to the support body 3031. The inner side of the support body 3031 is provided with a testing unit 3033. The support body 3031 is provided with a transparent window 3034 and a positioning plate 3035. The positioning plate 3035 is equipped with an opening and closing button for controlling the testing unit.

[0032] It should be noted that the support body 3031 in the detection mechanism 303 described in this embodiment is a hollow support body, and an opening with a transparent window 3034 is provided at the top. The opening is located directly below the vision inspection system 204, and can be captured and recorded by the vision inspection system 204. The support body 3031 is installed inside the outer frame 3021 in a lifting and resetting manner via a lifting and resetting component 3032. The lifting and resetting component 3032 ensures that the support body 3031 can move up and down within the outer frame 3021. An on / off button is provided on the positioning plate 3035. During the synchronous lifting and lowering of the support body 3031, the on / off button will touch the baffle 3023. At this time, the on / off button is controlled to control the operation of the test unit 3033.

[0033] In one embodiment of this application, such as Figure 5 and Figure 6 As shown, the test unit 3033 includes a push drive 30331 installed inside the support body 3031. The output end of the push drive 30331 is connected to the outer test board 30332. The outer test board 30332 extends to the outside of the support body 3031 and has a protrusion 30333 on one side.

[0034] It should be noted that the push drive 30331 inside the support body 3031 in the test unit 3033 can be a hydraulic cylinder. When the hydraulic cylinder is running, it pushes the outer test plate 30332 to move in the support body 3031. The protrusion 30333 abuts against the track during the test to fit the track.

[0035] In one embodiment of this application, such as Figure 1 As shown, the support mechanism 102 includes an outer shell 1021 disposed on the top wall of the fixed base 101, a movable rod 1022 movably disposed inside the outer shell 1021, and a handle 1023 extending to the outside of the outer shell 1021 on the movable rod 1022.

[0036] It should be noted that the outer shell 1021 described in this embodiment is mounted on the fixed base 101, and a movable rod 1022 is provided in the outer shell 1021. The top of the movable rod 1022 is provided with a locking pin, and the load-bearing plate 201 is provided with a slot that matches the locking pin after it is flipped. When the load-bearing plate 201 is rotated and adjusted to the storage angle, the movable rod 1022 is pushed upward by the handle 1023 so that the locking pin is engaged in the slot. The movable rod 1022 is limited and fixed. The fixing method can be achieved by existing technology, such as using an external adjusting screw to press and fix the movable rod 1022, so as to ensure the stability of the load-bearing plate 201 when it is stored.

[0037] In one embodiment of this application, such as Figure 3 As shown, the two sets of pressure rods 30223 are symmetrically arranged at an included angle on the upper and lower sides of the support body 3031, and the maximum distance between the surface of the outer ring 30222 and the pressure rod 30223 is less than the minimum distance between the surface of the outer ring 30222 and the inner wall of the outer frame 3021.

[0038] It should be noted that the two sets of pressure rods 30223 are arranged symmetrically at an included angle, and the distance between them is set to ensure that the pressure rods 30223 will not collide with the inner wall of the outer frame 3021 when the outer ring 30222 rotates.

[0039] In one embodiment of this application, such as Figure 6 As shown, the protrusion 30333 and the outer test plate 30332 are an integral structure, with a vertical notch between them. This notch ensures good positioning when the protrusion 30333 is fitted onto the track. The outer test plate 30332 is a segmented plate, with two segments directly connected to a telescopically movable pin. The pin moves within the outer test plate 30332, and a return spring is fitted onto the pin.

[0040] Furthermore, a rangefinder and a level are provided on the external test board 30332 for real-time observation. The data from the rangefinder and the level are reflected to the visual sensing system 204 through the observation window 3034.

[0041] In one embodiment of this application, such as Figure 3 and Figure 5 As shown, the lifting and resetting component 3032 includes an outer sleeve 30321 disposed on the top wall of the support body 3031, a guide rod 30322 movably disposed inside the outer sleeve 30321, an elastic element 30323 sleeved on the outer side of the guide rod 30322, and the two ends of the elastic element 30323 are respectively connected to the outer sleeve 30321 and the support body 3031.

[0042] It should be noted that the outer sleeve 30321 of the lifting and resetting component 3032 is fixedly installed on the top wall of the support body 3031. The inner side of the outer sleeve 30321 has a limiting groove for the lifting and lowering of the guide rod 30322, and an annular intercepting plate is provided in the limiting groove to limit the guide rod 30222, and an outer protruding plate with an outer diameter larger than the inner diameter of the annular intercepting plate is provided at the bottom of the guide rod 30222. The elastic element 30232 can be a reset spring, which drives the support body 3031 to reset when the pressure rod 30223 is not under force.

[0043] Specifically, the steps for simulating the turnout test are as follows: First, the equipment is moved to the predetermined test position on the steel turnout to be tested via the track wheel set 104, and the fixed base 101 provides basic support for the entire equipment. According to the test requirements, corresponding weights are installed on the positioning posts 202 and positioning slots 203 of the load-bearing plate 201 to simulate the static load when a train passes. During the equipment movement or stopping test, the vision inspection system 204 performs visual monitoring and measurement of the track and its underlying components.

[0044] The start-up drive unit 301 drives the transmission shaft 30221 and the outer ring 30222 to rotate. The two sets of pressure rods 30223 fixed on the outer ring 30222 rotate accordingly. When it is necessary to measure the distance between the track switches, the pressure rods 30223 press down on the support body 3031, causing the support body 3031 to extend out of the outer frame 3021. The test unit 3033 then descends to the measurement horizontal position of the track. During the downward pressure, the positioning plate 3035 and its on / off button on the support body 3031 contact the baffle 3023, thereby automatically triggering the test unit 3033 to start working.

[0045] The push drive 30331 (such as a hydraulic cylinder) inside the test unit 3033 is activated, pushing the outer test plate 30332 and the protrusion 30333 outward to fit tightly against a specific part of the rail turnout to be tested. The vertical notch design of the protrusion 30333 helps to stably engage the rail profile and ensure accurate measurement results.

[0046] The equipment simulates vertical loads by using weights on the load-bearing plate 201. Simultaneously, the equipment can be controlled to move slowly on the track or additional horizontal or longitudinal forces can be applied via the test unit 3033 to simulate the stress state of a train passing through a turnout. Sensors such as rangefinders and levels integrated inside the support body 3031 or on the external test plate 30332 measure in real time data such as the deformation, displacement, and stress concentration of the turnout under load.

[0047] Data acquisition: All sensor data can be transmitted via lines and observed and recorded by the visual inspection system 204 above the transparent window 3034 located on top of the support body 3031, realizing multi-source data acquisition and verification. After the test is completed, the drive unit 301 runs again, driving the pressure rod to move in the opposite direction, causing the lower pressure rod 30223 to abut against the support body 3031, moving it upward and causing the upper open / close button to contact the baffle 3023 again, thus closing the operation of the push drive 30331. When it is necessary to move the equipment or when not in a test state, the directional support mechanism 102 can be manually (or through an additional drive) rotated around its axis, thereby causing the connected outer sleeve 103, load-bearing positioning component 20 and storage detection component 30 to flip upward as a whole, reducing the vertical space occupied by the equipment. After rotating to a suitable angle, the movable rod 1022 on the directional support mechanism 102 (operated by the handle 1023) inserts the pin at its top into the corresponding slot of the load-bearing plate 201 and locks the movable rod 1022, thus fixing the equipment in the storage state.

[0048] In summary, the rail transit steel turnout strength test simulation equipment of this application uses a movable base to carry the simulated load and a lifting and retractable testing mechanism to accurately deliver the test unit to the turnout test point for fitting and measurement. This allows for the testing and data acquisition of key performance characteristics such as structural strength and deformation of rail transit steel turnouts under simulated real train loads. Its retractable design improves the equipment's site adaptability and ease of transport.

[0049] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A simulation device for strength testing of steel rail turnouts in rail transit, characterized in that, The system includes a base support assembly (10), which includes a fixed base (101). One side of the fixed base (101) is provided with a directional support mechanism (102). Two sets of directional support mechanisms (102) are provided with outer sleeves (103) rotatably on opposite end faces. One side of the fixed base (101) is provided with a track wheel set (104). The outer sleeve (103) is provided with a load-bearing positioning component (20) on one side. The load-bearing positioning component (20) includes a load-bearing plate (201). The load-bearing plate (201) is provided with a positioning post (202) and a positioning groove (203) on the side away from the fixed base (101). The bottom of the load-bearing plate (201) is provided with a vision inspection system (204). It also includes a retractable detection component (30) disposed on one side of the load-bearing plate (201). The retractable detection component (30) includes a drive unit (301). A steering mechanism (302) is provided on the side of the load-bearing plate (201) away from the drive unit (301). The output end of the drive unit (301) is connected to the steering mechanism (302). A detection mechanism (303) is provided in the steering mechanism (302) in a vertically oriented manner.

2. The simulation equipment for testing the strength of steel rail turnouts in rail transit according to claim 1, characterized in that, The steering mechanism (302) includes an outer frame (3021) disposed on one side of the load-bearing plate (201), and a transmission member (3022) connected to the output end of the drive unit (301) is provided inside the outer frame (3021). A baffle (3023) is provided inside the outer frame (3021) on one side relative to the transmission member (3022).

3. The simulation equipment for testing the strength of steel rail turnouts in rail transit according to claim 2, characterized in that, The transmission component (3022) includes a transmission shaft (30221) rotatably disposed inside the outer frame (3021). The transmission shaft (30221) is disposed at the output end of the drive unit (301). An outer sleeve (30222) is fitted on the outer wall of the transmission shaft (30221). Pressure rods (30223) are symmetrically provided on the outer wall of the outer sleeve (30222).

4. The simulation equipment for testing the strength of steel rail turnouts in rail transit according to claim 1, characterized in that, The testing mechanism (303) includes a lifting and resetting component (3032) that is vertically disposed inside the outer frame (3021). The lifting and resetting component (3032) is connected to a support body (3031) on the side away from the inner wall of the outer frame (3021). A testing unit (3033) is provided inside the support body (3031). A transparent window (3034) and a positioning plate (3035) are provided on the support body (3031). An opening and closing button for controlling the testing unit is installed on the positioning plate (3035).

5. The simulation equipment for testing the strength of steel rail turnouts in rail transit according to claim 4, characterized in that, The test unit (3033) includes a push drive (30331) installed inside the support body (3031). The output end of the push drive (30331) is connected to an external test board (30332). The external test board (30332) extends to the outside of the support body (3031) and has a protrusion (30333) on one side.

6. The simulation equipment for testing the strength of steel rail turnouts in rail transit according to claim 1, characterized in that, The support mechanism (102) includes an outer shell (1021) disposed on the top wall of the fixed base (101), a movable rod (1022) is movably provided on the inner side of the outer shell (1021), and a handle (1023) extending to the outer side of the outer shell (1021) is provided on the movable rod (1022).

7. The simulation equipment for testing the strength of steel rail turnouts in rail transit according to claim 4, characterized in that, The two sets of pressure rods (30223) are symmetrically arranged at an included angle on the upper and lower sides of the support body (3031), and the maximum distance between the surface of the outer ring (30222) and the pressure rod (30223) is less than the minimum distance between the surface of the outer ring (30222) and the inner wall of the outer frame (3021).

8. The simulation equipment for testing the strength of steel rail turnouts in rail transit according to claim 5, characterized in that, The protrusion (30333) and the outer test plate (30332) are an integral structure, and a vertical notch is left between the protrusion (30333) and the outer test plate (30332).

9. The rail transit steel turnout strength test simulation equipment according to claim 1, wherein the lifting and resetting component (3032) includes an outer sleeve (30321) disposed on the top wall of the support body (3031), a guide rod (30322) is movably provided inside the outer sleeve (30321), an elastic element (30323) is sleeved on the outer side of the guide rod (30322), and the two ends of the elastic element (30323) are respectively connected to the outer sleeve (30321) and the support body (3031).

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