Train body height adjusting system and height detection device thereof

Abstract

The application discloses a train body height adjusting system and a height detection device thereof. The detection device comprises a vertically arranged main body and a cover plate of the main body, and a limiting spring is used for connecting the main body and the cover plate. The upper end of the main body is horizontally provided with a first measuring plate, and the upper end of the cover plate is horizontally provided with a second measuring plate which is located directly below the first measuring plate. The main body slides relative to the cover plate, and drives the first measuring plate to move at equal distances relative to the second measuring plate. A displacement sensor is arranged on the main body and is used for measuring the sliding distance of the main body. The train body height detection device provided by the application solves the complexity of manual measurement, improves the detection precision and improves the operation efficiency. The train body height adjusting system comprises a plurality of train body height detection devices, and is more intelligent and efficient in development and utilization of the train body height detection device.

Description

Technical Field

[0001] This invention belongs to the field of train height adjustment technology, and relates to a train body height adjustment system and its height detection device. Background Technology

[0002] Each car in the high-speed maglev train has eight pairs of bolsters at the bottom, with a corresponding air spring beneath each bolster. These bolsters support the weight of the car body and also provide some cushioning against vibrations. The car height adjustment valve unit NR is used to inflate or deflate the air springs, thereby adjusting the car height to maintain a set relative height under different loads, unaffected by changes in the car's load. Inflating the air springs raises the car height; deflating them lowers the car height.

[0003] The structure of the vehicle height adjustment valve unit NR is as follows: Figure 1 As shown, the positions of the crossbar 11 and the adjusting rod 12 remain unchanged. When the vehicle load increases, the height of the vehicle floor plate 15 decreases, causing the height of the valve body 14 to decrease accordingly. The working rod 13 rotates upward by a certain angle, causing the valve core (not shown in the figure) inside the valve body to move upward, thereby inflating the air spring. Conversely, when the vehicle load decreases, the height of the vehicle floor plate 15 increases, causing the height of the valve body 14 to rise accordingly. The working rod 13 rotates downward by a certain angle, causing the valve core (not shown in the figure) inside the valve body to move downward, thereby deflating the air spring.

[0004] In practical applications, each air spring B has a limiting rubber component C on both sides. The limiting rubber component C is located between the bolster A and the skid support D, and is mounted on the skid support D. Figure 2 As shown. When the air spring fails due to air leakage in the pipeline or rupture of the airbag, the bolster descends to the limiting rubber component. This limiting rubber component supports the car body and bears the car body load, while preventing dangers such as car tilting or component damage from compression. The bolster is connected to the car body, and the limiting rubber component is connected to the train running gear. Since the inherent height of each component cannot be changed, the height of the car body relative to the running gear can only be adjusted by inflating or deflating the air spring, thus changing the gap height d between the bolster and the corresponding limiting rubber component. In practice, measuring or adjusting the train body height generally only requires measuring or adjusting the gap height d between the bolster and the corresponding limiting rubber component.

[0005] The high-speed maglev train consists of a front carriage E1, a rear carriage E2, and several intermediate carriages M#. Each carriage has eight pairs of air springs B arranged at its bottom. In the front carriage E1, near the front of the train, two sets of body height adjustment valve units NR are located at the second pair of bolsters, redundantly positioned. The NR outputs air to control the first five pairs of air springs in the carriage. At the rear of the carriage, one set of body height adjustment valve units NR is located at the seventh bolster, controlling the last three pairs of air springs. Figure 3 As shown. Similar to the front car E1, the rear car E2, near the rear, has two sets of body height adjustment valve units NR located at the 7th bolster, redundantly positioned. The NR outputs air to control the 5 pairs of air springs at the rear of the car. At the front of the car, there is one set of body height adjustment valve units NR located at the 2nd bolster, controlling the 3 pairs of air springs at the front. The middle car M# has body height adjustment valve units NR located at the 2nd and 7th bolsters. The NR at the 7th bolster of this car is redundant with the NR at the 2nd bolster of the next car. Figure 4 As shown.

[0006] The measurement, recording, and adjustment of the car body height according to the maintenance procedures requires four maintenance personnel. The measurement process must begin after the train has been powered on for 15 minutes (this waiting time is to ensure the accuracy of the height measurement). During this period, the car body must remain stable, free from load interference, and no personnel should be present or moving about to prevent interference with the measurement data. During measurement, a wedge-shaped ruler is used on both sides of the car body to measure the height gap d between the bottom surface of the bolster and the top surface of the limiting rubber component. For example... Figure 2 As shown.

[0007] The height of the limiting rubber parts under the first pair of bolsters of E1 and the eighth pair of bolsters of E2 is 90mm, and their clearance height d is required to be 14±3mm. The height of the limiting rubber parts at other positions on the train is 100mm, and the clearance height requirement is 11±3mm.

[0008] like Figure 5 As shown, the measurement points for E1 are located at the limiting rubber parts under the first and seventh pairs of bolsters on the car body. The required clearance height d at measurement points 1 and 2 is 14±3mm, and the required clearance height d at measurement points 3 and 4 is 11±3mm. The measurement points for CRRC M* are located at the limiting rubber parts under the seventh pair of bolsters in the preceding car and the second pair of bolsters in the following car. The required clearance height d at measurement points 1-4 is 11±3mm. The measurement points for E2 are located at the limiting rubber parts under the second and eighth pairs of bolsters on the car body. The required clearance height d at measurement points 1 and 2 is 11±3mm, and the required clearance height d at measurement points 3 and 4 is 14±3mm.

[0009] If the measured clearance height d exceeds its corresponding value range, the vehicle body height needs to be adjusted according to the procedure by adjusting the height valve so that the measured clearance height d is within its corresponding value range after adjustment.

[0010] The vehicle body height adjustment value is K, and the calculation formula is as follows: K = [d O -(d L +d R ) / 2]×α, where d O The ideal clearance height is when the height of the limiting rubber component at the measuring point is 90mm, d O The value is 14mm; when the height of the limiting rubber component at the measuring point is 100mm, d O It is 11mm; d L and d R K represents the actual measured clearance height between the bolster and the limiting rubber parts on both sides of the air spring; α represents the deviation coefficient, for example, α is 1.76. A negative K value indicates that the vehicle body is too high, and a positive K value indicates that the vehicle body is too low.

[0011] The relationship between the number of rotations U of the NR adjusting lever 12 and the vehicle height adjustment value K is as follows: U = K / β, where β is the coefficient of the NR, and β is different for different NRs; for example, β = 2. The NR adjusting lever 12 is adjusted according to the number of rotations U (rotated counterclockwise when the vehicle is too high, and clockwise when the vehicle is too low). The change in the length of the adjusting lever 12 alters the valve core angle inside the valve body, thus inflating or deflating the air spring, thereby changing the vehicle height. After a period of time, when the vehicle position changes to a new equilibrium position, a person outside the vehicle is required to remeasure. If the reading is within the specified range, the adjustment work ends; otherwise, the above process is repeated.

[0012] The existing adjustment methods described above have the following problems:

[0013] (1) The air spring internal gas pressure reflects the change in vehicle height with a lag, and the entire adjustment and waiting time is very long.

[0014] (2) The measurement point is between the top surface of the limiting rubber part and the bottom surface of the rocker. Due to the age of the limiting rubber part, the rebound ability after aging is poor, and the rubber part cannot maintain the original 100mm or 90mm size. The thickness of the adhesive on each rubber part bonded to the skid support is unknown. The above two situations cannot guarantee the standard uniformity of the height of the limiting rubber part at the measurement point.

[0015] (3) The change in vehicle height is entirely measured manually. The measurement space is small and the operation is difficult. The wedge ruler reading will vary depending on the operator.

[0016] (4) The change in vehicle height is a dynamic process. Manual measurement cannot reflect the real-time status, and the reading lags behind the change. Summary of the Invention

[0017] Currently, train body height adjustment relies on manual measurement and recording, which is inefficient and significantly affected by human factors. Numerous measurement points are required, making it difficult to quickly locate them and necessitating repeated measurements and adjustments to achieve the specified height range, leading to difficulties in calculation and adjustment. Furthermore, adjustments require repositioning for measurement. To overcome these problems, this invention provides a train body height adjustment system and its height detection device.

[0018] One technical solution of the present invention is to provide a train body height detection device, the detection device comprising:

[0019] The components include a first measuring plate, a second measuring plate, a main body, and a cover plate for the main body; wherein...

[0020] The main body is vertically arranged and has a receiving cavity, the opening of which is located on the side of the main body; the cover plate is vertically arranged at the opening of the receiving cavity; the main body can slide up and down relative to the cover plate; a displacement sensor is provided in the receiving groove;

[0021] The first measuring plate is horizontally disposed at the upper end of the main body, and the second measuring plate is horizontally disposed at the upper end of the cover plate; the first measuring plate and the second measuring plate are disposed in the same direction, and the first measuring plate is located above the second measuring plate; the first measuring plate moves synchronously with the main body.

[0022] The first measuring plate and the second measuring plate are attached together and inserted into the gap between the bolster and the limiting rubber part of the vehicle body. The second measuring plate is placed on the top surface of the limiting rubber part. The main body slides so that the first measuring plate is in close contact with the bottom surface of the bolster. The height of the gap between the bolster and the limiting rubber part is equal to the sum of the distance the first measuring plate moves relative to the second measuring plate and the thickness of the first measuring plate and the thickness of the second measuring plate. The displacement sensor obtains the distance the first measuring plate moves relative to the second measuring plate by measuring the distance the main body slides, and outputs the height of the gap between the bolster and the limiting rubber part.

[0023] Preferably, the displacement sensor is a miniature slider sensor, having a protruding slider and a stroke groove, wherein the stroke groove is vertically arranged and the slider slides in the stroke groove;

[0024] The bottom of the stroke groove is the lower limit position of the slider, and the top is the upper limit position of the slider;

[0025] The cover plate is provided with a connecting member; the connecting member is provided with a first limiting groove, and the slider is placed in the first limiting groove;

[0026] The main body slides to drive the displacement sensor, the slider is fixed in the first limiting groove, and the stroke groove moves relative to the slider.

[0027] Preferably, the displacement sensor is used to measure the distance the stroke groove moves relative to the slider;

[0028] The distance the stroke groove moves relative to the slider is equal to the distance the main body slides;

[0029] The distance the main body slides is equal to the distance the first measuring plate moves relative to the second measuring plate;

[0030] The displacement sensor is calibrated so that the value output by the displacement sensor is the sum of the measured distance the stroke groove moves relative to the slider and the thickness of the first measuring plate and the thickness of the second measuring plate.

[0031] Preferably, the detection device further includes a limiting spring; one end of the limiting spring is disposed on the lower bottom surface of the connecting member, and the other end is disposed on the inner wall of the bottom of the main body;

[0032] The connector is higher than the bottom of the main body, and the vertical distance between the bottom surface of the connector and the inner wall of the bottom of the main body is greater than the length of the limiting spring.

[0033] The main body slides upward along the cover plate under the tension of the limiting spring until it reaches the equilibrium position.

[0034] Preferably, when the main body is in the equilibrium position, the first measuring plate and the second measuring plate are separated, and the vertical distance from the upper surface of the first measuring plate to the lower surface of the second measuring plate is greater than the height of the gap between the rocker and the limiting rubber part; the slider is positioned in the stroke groove below the upper limit position, or at the upper limit position.

[0035] When the first measuring plate and the second measuring plate are attached, the main body is in its initial position on the cover plate, and the slider is in its lower limit position.

[0036] Preferably, a fixing plate is provided in the receiving cavity of the main body; the displacement sensor is disposed on the fixing plate;

[0037] The main body cavity is also provided with a guide rail, which is vertically arranged.

[0038] Preferably, the coupling is further provided with a second limiting groove; the second limiting groove is provided in the vertical direction;

[0039] The cover plate is also provided with a limiting block, and the limiting block has a guide rail groove; the guide rail groove is opened in the vertical direction; the guide rail groove and the second limiting groove are on the same straight line;

[0040] The guide rail is located in the second limiting groove and the guide rail groove, and slides in the second limiting groove and the guide rail groove.

[0041] Preferably, the detection device further includes a first base plate and a second base plate;

[0042] The first base plate is horizontally disposed at the upper end of the main body, and its setting direction is opposite to that of the first measuring plate;

[0043] The second base plate is horizontally positioned above the cover plate, and its orientation is opposite to that of the second measuring plate.

[0044] The first base plate has an opening for accommodating the second base plate, so that the first base plate and the second base plate can be in the same plane.

[0045] Another technical solution of the present invention is to provide a train body height adjustment system, comprising a terminal device, a multi-channel digital display controller, and several of the above-mentioned train body height detection devices;

[0046] The plurality of train body height detection devices are respectively arranged at the measurement points of the train body, collect the gap height between the bolster and the limiting rubber parts at each measurement point of the train body, and transmit it to the multi-channel digital display controller;

[0047] The multi-channel digital display controller is communicatively connected to the terminal device, and transmits the received gap height information of the vehicle body measurement points to the terminal device for data processing and storage.

[0048] Preferably, the terminal device has a corresponding measurement point gap height data processing platform;

[0049] The processing platform is used to calculate the difference in gap height between the measurement points before and after adjustment, determine whether the gap height of the measurement points is within the specified range, and calculate the number of rotations of the NR adjustment rod.

[0050] The terminal device also has a storage unit for storing data.

[0051] Compared with the prior art, the train body height adjustment system and its height detection device provided by the present invention have the following advantages or significant improvements:

[0052] (1) The use of a miniature slider sensor has changed the original defect that manual operation affected the accuracy of wedge ruler measurement readings, and the measurement accuracy has been improved by orders of magnitude.

[0053] (2) The data detected by the miniature slider sensor is transmitted to the terminal device through a multi-channel digital display controller to dynamically and in real time reflect the height value of the vehicle body, solving the problem that it was previously impossible to simultaneously and accurately observe and record the changes in the height of the vehicle body at multiple measurement points;

[0054] (3) The data processing platform can save and retrieve the measured and adjusted raw data, which is convenient for analysis and statistics;

[0055] (4) Operators can directly and accurately grasp the trend of height change through instrument readings, which can prevent the phenomenon of human error in measurement, reading, and adjustment by the measuring personnel on both sides of the vehicle body and the phenomenon of the adjusting personnel mishearing during the adjustment process.

[0056] (5) The adjustment amount of the adjusting screw can be adjusted according to the current reading and the rate of change of the reading;

[0057] (6) Only one person needs to make adjustments at the NR position, avoiding interference from the measurement of the vehicle height caused by the measurement personnel walking back and forth in the carriage;

[0058] (7) To correct the effects of deformation of the limiting rubber parts and coating thickness, a compensation amount can be added to make the vehicle height measurement more accurate.

[0059] (8) Multiple height detection devices can simultaneously replace manual measurement at multiple points, saving labor and time costs. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the NR structure of the vehicle height adjustment valve unit;

[0061] Figure 2 This is a schematic diagram showing the positional relationship between the train's bolster A, air spring B, and limiting rubber component C.

[0062] Figure 3 This is a schematic diagram showing the control and distribution of the air springs by NR in the front carriage E1 of the train.

[0063] Figure 4 This is a schematic diagram showing that the NR of adjacent carriages in the middle carriage M# of the train are redundant;

[0064] Figure 5 This is a schematic diagram showing the locations of measurement points in each carriage of the train.

[0065] Figure 6 This is an exploded view of the train body height detection device;

[0066] Figure 7 This is a partial structural diagram of the cover plate.

[0067] Figure 8 This is a partial structural diagram of the main body portion;

[0068] Figure 9 A schematic diagram of the train body height detection device when the first and second measuring plates are separated;

[0069] Figure 10 A schematic diagram of the train body height detection device when the first and second measuring plates are attached;

[0070] Figure 11 and Figure 12 A schematic diagram of the detection device for the train body height in the gap between the bolster and the limiting rubber parts at different heights;

[0071] Figure 13 This is a schematic diagram of the train body height adjustment system. Detailed Implementation

[0072] The present invention will be further described below with reference to the accompanying drawings and by way of detailed description of preferred embodiments.

[0073] In practical applications, a bolster is installed at the bottom of the train to support the vehicle body; an air spring B is installed below the bolster A, and each air spring B has a limiting rubber component C on both sides. The limiting rubber component C is located below the corresponding bolster A, such as... Figure 2 As shown. By inflating or deflating the air spring, the height d between the bolster and the corresponding limiting rubber component is changed, thereby adjusting the height of the car body relative to the running gear, i.e., the car body height. Since the inherent height of components such as the car body and bolster cannot be changed, determining the height d of the gap between the bolster and the limiting rubber component determines the car body height. Measuring the train body height is essentially measuring the height d of the gap between the bolster and the limiting rubber component.

[0074] Figure 6 This is an exploded view of the train body height detection device; Figure 7 This is a partial structural diagram of the cover plate. Figure 8 This is a partial structural diagram of the main body portion. (See also...) Figure 6-8 The train body height detection device provided by the present invention includes a main body 210, a cover plate 211, a first measuring plate 212, a first base plate 213, a second measuring plate 214, a second base plate 215, a displacement sensor 216, a guide rail 217, a fixing plate 218, a connecting member 219, a limiting block 220, and a limiting spring 221.

[0075] In this embodiment of the invention, the main body 210 and the cover plate 211 are vertically arranged. The main body 210 is a rectangular box structure with a receiving cavity, the opening of which is located on the side of the main body. The cover plate 211 is a rectangular plate that matches the main body 210 and is disposed at the opening of the receiving cavity. The main body 210 is slidable relative to the cover plate 211. It should be noted that the shape of the main body and the cover plate is not limited in this invention, and can be set as needed in practical applications.

[0076] A first measuring plate 212 is horizontally arranged at the upper end of the main body 210, and a first base plate 213 is horizontally arranged at the lower end, with the first measuring plate 212 and the first base plate 213 arranged in opposite directions. In this embodiment of the invention, mounting holes are provided at one end of the top plate of the main body 210 and one end of the first measuring plate 212. Fasteners such as screws or bolts are passed through the mounting holes on the top plate of the main body 210 and the first measuring plate 212 to clamp and fix the first measuring plate 212 to the top plate of the main body 210, thereby achieving a fixed connection between the first measuring plate 212 and the main body 210. Similarly, mounting holes are provided at one end of the bottom plate of the main body 210 and one end of the first base plate 213. Fasteners are used to clamp and fix them, thereby achieving a fixed connection between the first base plate 213 and the main body 210. The main body 210, the first measuring plate 212, and the first base plate 213 in this invention can also be an integrally formed structure, or other feasible methods can be used to achieve connection and fixation, which is not limited here.

[0077] A second measuring plate 214 is horizontally arranged at the upper end of the cover plate 211, and a second base plate 215 is horizontally arranged at the lower end, with the second measuring plate 214 and the second base plate 215 arranged in opposite directions. In this embodiment of the invention, mounting holes are provided on the top surface of the cover plate 211 and one end of the second measuring plate 214. Fasteners such as screws or bolts are passed through the mounting holes on the top surface of the cover plate 211 and the second measuring plate 214 to clamp and fix the second measuring plate 214 to the cover plate 211, thereby achieving a fixed connection between the second measuring plate 214 and the cover plate 211. Similarly, mounting holes are provided on the bottom surface of the cover plate 211 and one end of the second base plate 215. Fasteners are used to clamp and fix them, thereby achieving a fixed connection between the second base plate 215 and the cover plate 211. The cover plate 211, the second measuring plate 214, and the second base plate 215 in this invention can also be integrally formed structures, or other feasible methods can be used to achieve connection and fixation, which is not limited here.

[0078] The first measuring plate 212 is oriented in the same direction as the second measuring plate 214, and the second measuring plate 214 is located below the first measuring plate 212. The first base plate 213 and the second base plate 215 are also oriented in the same direction. The first base plate 213 is reversed from the first measuring plate 212, and the second base plate 215 is reversed from the second measuring plate 214, which facilitates the use of the first measuring plate 212 and the second measuring plate 214 to extend into the bottom of the vehicle body for measurement.

[0079] Other components, such as connecting rods, are typically installed between the bolster and the limiting rubber component at the bottom of the train. To facilitate the insertion and free movement of the first measuring plate 212 and the second measuring plate 214 into the gap between the bolster and the limiting rubber component, in this embodiment of the invention, U-shaped openings are provided on the top of the first measuring plate 212 and the second measuring plate 214. When the first measuring plate 212 and the second measuring plate 214 are inserted into the gap between the bolster and the limiting rubber component, the connecting rods and other components are located within the U-shaped openings of the first measuring plate 212 and the second measuring plate 214, thereby facilitating measurement.

[0080] The first base plate 213 has an opening to accommodate the second base plate 215, allowing the first base plate 213 and the second base plate 215 to be in the same plane. In this embodiment of the invention, the second base plate 215 is U-shaped, and the first base plate 213 has a U-shaped opening to match it. The shape of the opening on the first base plate 213 is not limited in this invention and can be set as needed.

[0081] The main body 210 is equipped with a displacement sensor 216 and a guide rail 217, which move synchronously with the main body 210.

[0082] In this embodiment of the invention, the main body 210 and the displacement sensor 216 are connected by a fixing plate 218. Specifically, mounting holes are made on the inner wall of the top plate of the main body 210 and on the fixing plate 218, and the fixing plate 218 is fixed to the main body 210 using fasteners. Similarly, the displacement sensor 216 is fixed to the fixing plate 218. By setting the fixing plate 218, the installation position requirements of the displacement sensor 216 are easily met. The displacement sensor 216 is a miniature slider sensor with a protruding slider 2161 and a travel groove 2162. The travel groove 2162 is vertically arranged, and the slider 2161 slides in the travel groove 2162, or in other words, the travel groove 2162 moves relative to the slider 2161. The bottom of the travel groove 2162 is the lower limit position of the slider, and the top is the upper limit position of the slider.

[0083] In this embodiment of the invention, a guide rail 217 is installed on the side plate of the main body 210 opposite to the cover plate. Mounting holes are provided on the side plate and the guide rail 217, and fasteners are used to tighten and fix the two together. The guide rail 217 is vertically arranged.

[0084] The cover plate 211 is provided with a connecting member 219 and a limiting block 220, which are fixed to the cover plate 211 and do not move.

[0085] In this embodiment of the invention, the connecting member 219 has a U-shaped first limiting groove 2191, and the slider 2161 is fixed in the first limiting groove 2191 and cannot move with the displacement sensor 216. The connecting member 219 also has a U-shaped second limiting groove 2192, which is in the vertical direction, and the guide rail 217 is located in the second limiting groove 2192.

[0086] In this embodiment of the invention, the limiting block 220 is disposed below the connecting member 219; the limiting block 220 has a guide rail groove 2201, which is arranged vertically and is located on the same straight line as the second limiting groove 2192, and the guide rail is also located in the guide rail groove 2201. When the main body 210 slides, the guide rail 217 slides synchronously in the guide rail groove 2201 and the second limiting groove 2192, while also ensuring the stability of the sliding of the main body 210 relative to the cover plate 211.

[0087] The limiting spring 221 is used to connect the main body 210 and the cover plate 211.

[0088] See also Figure 9-12 In this embodiment of the invention, one end of the limiting spring 221 is disposed at the bottom of the connecting member 219, and the other end is disposed on the inner wall of the bottom of the main body 210. Since the connecting member 219 is higher than the bottom of the main body 210, and the vertical distance between the lower bottom surface of the connecting member 219 and the inner wall of the bottom of the main body 210 is greater than the length of the limiting spring 221, the limiting spring 221 exerts an upward pulling force on the main body 210. Under the action of this pulling force, the main body 210 slides upward along the cover plate to reach a balance position. Without external force, the main body 210 remains at this balance position. At this time, the first measuring plate 212 and the second measuring plate 214 are in a separated state (e.g., ...). Figure 9 As shown), the vertical distance from the upper surface of the first measuring plate 212 to the lower surface of the second measuring plate 214 is greater than the height d of the gap between the rocker and the limiting rubber part, and the position of the slider 2161 in the stroke groove is lower than the upper limit position, or is located at the upper limit position.

[0089] A downward force is applied to the first measuring plate 212, and the main body 210 slides downward along the cover plate away from the equilibrium position until the first measuring plate 212 is in contact with the second measuring plate 214 (e.g., Figure 10 As shown), at this time, the main body 210 is in the initial position on the cover plate 211, the slider 2161 is in the lower limit position, and the first base plate 213 and the second base plate 215 are in the same plane.

[0090] In this embodiment, the displacement sensor 216 is used to measure the distance that the stroke groove 2162 moves relative to the slider 2161.

[0091] A downward force is applied to move the first measuring plate 212 downwards to fit against the second measuring plate 214. The fitted first measuring plate 212 and the second measuring plate 214 are then inserted into the gap between the bolster and the limiting rubber component of the vehicle body. The second measuring plate 214 is placed on the top surface of the limiting rubber component. Then the downward force is removed, and the main body 210 automatically slides upwards along the cover plate under the tension of the limiting spring until it reaches the bottom surface of the bolster (e.g., ...). Figure 11 As shown, Figure 12 The thickness of the first measuring plate and the second measuring plate is exactly equal to the gap height between the rocker and the limiting rubber part; the displacement sensor 216 includes a stroke groove 2162 that moves synchronously with the main body 210, while the slider 2161 is locked in the first limiting groove 2191 of the connecting member 219 and does not move. The stroke groove 2162 moves relative to the slider 2161. When the main body 210 reaches the bottom surface of the rocker, the stroke groove 2162 stops moving. At this time, the gap height d between the rocker and the limiting rubber part is equal to the sum of the distance the first measuring plate moves relative to the second measuring plate and the thickness of the first measuring plate and the thickness of the second measuring plate.

[0092] The displacement sensor 216 measures the distance the travel groove 2162 moves during this process. Since the distance the travel groove 2162 moves relative to the slider 2161 is equal to the distance the main body 210 slides, and the distance the main body 210 slides is equal to the distance the first measuring plate 212 moves relative to the second measuring plate 214, in other words, the displacement sensor 216 measures the distance the first measuring plate 212 moves relative to the second measuring plate 214.

[0093] The displacement sensor 216 is pre-calibrated so that the value output by the displacement sensor is the sum of the measured distance the stroke groove moves relative to the slider and the thickness of the first measuring plate and the thickness of the second measuring plate, that is, the gap height d between the bolster and the limiting rubber part, thereby realizing the measurement of the height of the train body.

[0094] The train body height adjustment system provided by this invention includes a terminal device, a multi-channel digital display controller, and several train body height detection devices. The train body height adjustment system provided in this embodiment of the invention has four of the aforementioned train body height detection devices, such as... Figure 13 As shown.

[0095] Four train body height detection devices are respectively arranged at measurement points on any train body to collect the gap height between the bolster and the limiting rubber parts at each measurement point and transmit it to a multi-channel digital display controller. The multi-channel digital display controller is connected to the terminal device via wired or wireless communication, and transmits the received gap height information of the train body measurement points to the terminal device for data processing and storage.

[0096] The terminal device has a corresponding data processing platform for measuring the gap height (not shown in the figure). The processing platform acquires data from the multi-channel digital display controller and displays it on the terminal device's screen. Operators can save the data before and after adjustment. The processing platform automatically calculates the gap difference between the left and right sides after adjustment, selects the appropriate adjustment based on the rules of the tested carriage, and calculates the number of rotations of the NR adjustment rod. The terminal device saves this data for analysis and statistical purposes during operation.

[0097] The train body height adjustment system and its height detection device provided by this invention solve the tediousness of manual measurement, improve detection accuracy, and increase work efficiency; the equipment can record and save the original data of each measurement, and can trace the trend of changes in the body height, which brings convenience to the maintenance of the maglev train body equipment.

[0098] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A train body height detection device, characterized in that, The detection device includes: The components include a first measuring plate, a second measuring plate, a main body, and a cover plate for the main body; wherein... The main body is vertically arranged and has a receiving cavity, the opening of which is located on the side of the main body; the cover plate is vertically arranged at the opening of the receiving cavity; the main body can slide up and down relative to the cover plate; a displacement sensor is provided inside the receiving cavity; The first measuring plate is horizontally disposed at the upper end of the main body, and the second measuring plate is horizontally disposed at the upper end of the cover plate; the first measuring plate and the second measuring plate are disposed in the same direction, and the first measuring plate is located above the second measuring plate; the first measuring plate moves synchronously with the main body. The first measuring plate and the second measuring plate are attached together and inserted into the gap between the bolster and the limiting rubber part of the vehicle body. The second measuring plate is placed on the top surface of the limiting rubber part. The main body slides so that the first measuring plate is in close contact with the bottom surface of the bolster. The height of the gap between the bolster and the limiting rubber part is equal to the sum of the distance the first measuring plate moves relative to the second measuring plate and the thickness of the first measuring plate and the thickness of the second measuring plate. The displacement sensor obtains the distance the first measuring plate moves relative to the second measuring plate by measuring the distance the main body slides, and outputs the height of the gap between the bolster and the limiting rubber part. The displacement sensor is a miniature slider sensor, which has a protruding slider and a stroke groove. The stroke groove is vertically arranged, and the slider slides in the stroke groove. The bottom of the stroke groove is the lower limit position of the slider, and the top is the upper limit position of the slider; The cover plate is provided with a connecting member; the connecting member is provided with a first limiting groove, and the slider is placed in the first limiting groove; The main body slides to drive the displacement sensor, the slider is fixed in the first limiting groove, and the stroke groove moves relative to the slider; The displacement sensor is used to measure the distance the stroke groove moves relative to the slider; The distance the stroke groove moves relative to the slider is equal to the distance the main body slides; The distance the main body slides is equal to the distance the first measuring plate moves relative to the second measuring plate; The displacement sensor is calibrated such that the value output by the displacement sensor is the sum of the measured distance the stroke groove moves relative to the slider and the thickness of the first measuring plate and the thickness of the second measuring plate; The detection device also includes a limiting spring; one end of the limiting spring is disposed on the lower bottom surface of the connecting member, and the other end is disposed on the inner wall of the bottom of the main body; The connector is higher than the bottom of the main body, and the vertical distance between the bottom surface of the connector and the inner wall of the bottom of the main body is greater than the length of the limiting spring. The main body slides upward along the cover plate under the tension of the limiting spring until it reaches the equilibrium position.

2. The detection device as described in claim 1, characterized in that, When the main body is in the balanced position, the first measuring plate and the second measuring plate are separated, and the vertical distance from the upper surface of the first measuring plate to the lower surface of the second measuring plate is greater than the height of the gap between the rocker and the limiting rubber part. The slider is positioned below or at the upper limit position in the stroke groove; When the first measuring plate and the second measuring plate are attached, the main body is in its initial position on the cover plate, and the slider is in its lower limit position.

3. The detection device as described in claim 2, characterized in that, A fixing plate is provided in the receiving cavity of the main body; the displacement sensor is disposed on the fixing plate; The main body cavity is also provided with a guide rail, which is vertically arranged.

4. The detection device as described in claim 3, characterized in that, The coupling is also provided with a second limiting groove; the second limiting groove is provided in the vertical direction; The cover plate is also provided with a limiting block, and the limiting block has a guide rail groove; the guide rail groove is opened in the vertical direction; the guide rail groove and the second limiting groove are on the same straight line; The guide rail is located in the second limiting groove and the guide rail groove, and slides in the second limiting groove and the guide rail groove.

5. The detection device as described in claim 1, characterized in that, The detection device also includes a first base plate and a second base plate; The first base plate is horizontally disposed at the upper end of the main body, and its setting direction is opposite to that of the first measuring plate; The second base plate is horizontally positioned above the cover plate, and its orientation is opposite to that of the second measuring plate. The first base plate has an opening for accommodating the second base plate, so that the first base plate and the second base plate can be in the same plane.

6. A train body height adjustment system, characterized in that, It includes a terminal device, a multi-channel digital display controller, and several train body height detection devices as described in any one of claims 1 to 4; The plurality of train body height detection devices are respectively arranged at the measurement points of the train body, collect the gap height between the bolster and the limiting rubber parts at each measurement point of the train body, and transmit it to the multi-channel digital display controller; The multi-channel digital display controller is communicatively connected to the terminal device, and transmits the received gap height information of the vehicle body measurement points to the terminal device for data processing and storage.

7. The train body height adjustment system as described in claim 6, characterized in that, The terminal device has a corresponding measurement point gap height data processing platform; The processing platform is used to calculate the difference in gap height between the measurement points before and after adjustment, determine whether the gap height of the measurement points is within the specified range, and calculate the number of rotations of the NR adjustment rod. The terminal device also has a storage unit for storing data.

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