A measurement system calibration apparatus and method of use

Abstract

The application discloses a kind of measuring system calibration device and use method, the device is by being provided with measuring tool at the wheel hub of B, C, D three point measuring trolley of tamping car body, the measuring tool is provided with transverse scale and longitudinal scale, the observation component is by observing and recording the scale value of the measuring tool, and data is sent to the data processing unit, the secant value of the section line, longitudinal flat value and the transverse flat value of B point, C point, D point three places are calculated, to calibrate tamping car measuring system;Using the measuring system calibration device, can be calibrated on non-standard line to various models of tamping car measuring system by split type, connecting piece arrangement, sequentially arranged mode, simple and reliable use method, fast measurement efficiency, high calibration accuracy.

Description

Technical Field

[0001] This invention belongs to the field of track detection technology, specifically relating to a measurement system calibration device and its usage method. Background Technology

[0002] As an important mode of transportation and infrastructure, railways play a vital role and make significant contributions to transportation and economic development, and can be considered an indispensable part of modern society.

[0003] As a primary piece of equipment in railway construction, maintenance, and operation, railway tamping machines play a crucial role in ensuring safe railway operation. The tamping machine's measurement system is a key system guiding its operation, and its measurement accuracy directly affects the overall accuracy of the tamping operation. If the geometric parameters of the track do not meet the required accuracy after tamping, it may affect traffic safety and even lead to major accidents. The accuracy of the measurement system can be affected after prolonged operation or maintenance, therefore, it is necessary to calibrate the measurement system regularly, including the versine, longitudinal alignment, and transverse alignment.

[0004] However, currently, there is no mature and widely used device for calibrating tamping machine measurement systems. Each railway bureau calibrates its system based on its own experience and methods, resulting in inconsistent calibration methods, low efficiency, low accuracy, and a lack of universality. Therefore, there is an urgent need for a fast, efficient, high-precision, and versatile measurement system calibration device to solve this problem. Summary of the Invention

[0005] To address the lack of a dedicated calibration device for tamping machine measurement systems in the existing technology, this invention provides a measurement system calibration device and its usage method. The measurement system calibration device provided by this solution can calibrate various models of tamping machine measurement systems on non-standard lines. The usage method is simple and reliable, with fast measurement efficiency and high calibration accuracy.

[0006] The present invention provides a calibration device for a measurement system, the specific technical solution of which is as follows: an observation component, an observation support, a measurement fixture, and a data processing unit;

[0007] The observation component is placed on the top surface of the rail via the observation bracket;

[0008] The measuring fixture is set at the following points on the tamping machine body: point B (measuring the wheel hub), point C (measuring the wheel hub), and point D (measuring the wheel hub).

[0009] The measuring fixture is equipped with a horizontal scale and a vertical scale. The observation component observes and records the scale values ​​of the measuring fixture and sends the data to the data processing unit to calculate the versine value, longitudinal horizontal value, and horizontal horizontal values ​​at points B, C, and D of the line section, which are used to calibrate the tamping machine measurement system.

[0010] Preferably, the observation components specifically include: an observation instrument and an image processor;

[0011] The observation instrument is used to provide an observation field of view, which facilitates the recording of the scale values ​​on the measuring fixture;

[0012] The image processor is electrically connected to the data processing unit to convert the observed field of view into a digital signal and transmit it to the data processing unit for calculation.

[0013] Preferably, the observation support specifically includes: a support, a crossbeam, a fixed base, and a scale;

[0014] The observation support is a symmetrical structure design, and can be detachably connected to the top surface of the left and right rails by the fixed seats provided on both sides of the crossbeam.

[0015] The supports are located at both ends of the crossbeam and are used to place the observation components;

[0016] The scale is set on the top surface of the center point of the crossbeam to measure the relative height difference between the two observation components.

[0017] Preferably, the measuring fixture specifically includes: a ruler bracket, a horizontal ruler, a vertical ruler, a fixture fixing base, and a horizontal baffle;

[0018] The scale bracket is provided with a horizontal scale along the horizontal direction and a vertical scale along the vertical direction, with the horizontal scale and the vertical scale being distributed perpendicularly to each other.

[0019] The bottom of the scale bracket is provided with the tooling fixing seat, and the side of the tooling fixing seat is also provided with the transverse baffle extending beyond the bottom surface;

[0020] The measuring fixture is detachably and symmetrically mounted on the top surface of the left and right rails via the fixture fixing seat, and the transverse baffle is in close contact with the inner side of the rail.

[0021] Preferably, the scale bracket is hinged to the tooling fixture, and the scale bracket can be adjusted by rotating relative to the tooling fixture via the connection point.

[0022] Preferably, the measuring fixture further includes a level mounted on the ruler bracket.

[0023] Preferably, the ruler bracket has multiple installation positions for the horizontal and vertical rulers to ensure that points B, C, and D are installed in a staggered manner.

[0024] The present invention also provides a method for using a measurement system calibration device, the specific steps of which include:

[0025] S1. The measuring fixture is symmetrically distributed on the top surface of the rails at points B, C, and D, where the wheel hubs of the trolley are measured.

[0026] S2. The observation component is placed on the top surface of the rail at the front or rear of the tamping machine using the observation bracket, ensuring that the scale values ​​at points B, C, and D can be observed.

[0027] S3. The scale values ​​observed in S2 are processed by the data processing unit to calculate the versine value, longitudinal horizontal value, and transverse horizontal value at points B, C, and D of the line section, which are used to calibrate the tamping machine measurement system.

[0028] Preferably, the arrangement of the measuring fixture in step S1 can also be:

[0029] S1. The measuring fixture is located at point B, point C, and point D, measuring the wheel hub of the trolley, and is symmetrically distributed on the top surface of the rails along the left and right rails via a connecting device.

[0030] S2. The observation component is placed on the top surface of the rail at the front or rear of the tamping machine using the observation bracket, ensuring that the scale values ​​at points B, C, and D can be observed.

[0031] S3. The data processing unit sequentially observes the scale values ​​and calculates the versine value, longitudinal horizontal value, and transverse horizontal value at points B, C, and D of the line section to calibrate the tamping machine measurement system.

[0032] Preferably, the arrangement of the measuring fixture in step S1 can also be:

[0033] S1. The measuring fixture is used to measure the wheel hub at point B, point C, and point D in sequence, and is symmetrically distributed on the top surface of the rails along the left and right rails via a connecting device.

[0034] S2. The observation component is placed on the top surface of the rail at the front or rear of the tamping machine using the observation bracket, ensuring that the scale values ​​at points B, C, and D can be observed.

[0035] S3. The data processing unit uses the observed scale values ​​to calculate the versine value, longitudinal horizontal value, and transverse horizontal value at points B, C, and D of the line section, in order to calibrate the tamping machine measurement system.

[0036] To address the current lack of a dedicated calibration device for tamping machine measurement systems, this invention provides a calibration device and method for using a tamping machine. The device employs measuring fixtures at three points (B, C, and D) on the tamping machine body, measuring the wheel hubs of the trolley wheels. Measurements are transmitted to a data processing unit for calculation, and the resulting data is used to calibrate the tamping machine measurement system. Using this calibration device, various models of tamping machine measurement systems can be calibrated on non-standard tracks. The method is simple, reliable, efficient, and provides high calibration accuracy. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a layout diagram of a measurement system calibration device usage method in a specific embodiment;

[0039] Figure 2 for Figure 1 Top view of the calibration device for the measurement system;

[0040] Figure 3 for Figure 1 Front view of the calibration device for the measurement system;

[0041] Figure 4 for Figure 3 Cross-sectional view of the measuring tooling of the calibration device for the measurement system;

[0042] Figure 5 This is a schematic diagram of the observation support structure;

[0043] Figure 6 For observation of the main view of the support structure;

[0044] Figure 7 A top view of the observation support structure;

[0045] Figure 8 This is a schematic diagram of the measuring tooling structure;

[0046] Figure 9 Layout diagram of a method for using a measurement system calibration device in another specific embodiment;

[0047] Figure 10 for Figure 9 Top view of the calibration device for the measurement system;

[0048] Figure 11 for Figure 9 Front view of the calibration device for the measurement system;

[0049] Figure 12 for Figure 11 A cross-sectional view of the measuring fixture of the calibration device for the measurement system. Detailed Implementation

[0050] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0052] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0054] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0055] Please refer to the following: Figures 1 to 8 The present invention describes the structure of a specific measurement system calibration device, including: observation component 2, observation support 3, measurement fixture 4, and data processing unit 1.

[0056] In such Figures 1 to 4 As shown, in the first embodiment, the observation component 2 is placed on the top surface of the rail via the observation bracket 3. The observation component 2 is an important functional component for observing and recording measurement data. By setting the observation bracket 3, it can be installed on the top surface of the rail to measure and calibrate the section of rail line.

[0057] In the prior art, railway tamping cars generally include a main frame and a car body. The front end of the main frame is provided with a front bogie, and the rear end of the main frame is provided with a rear bogie. In order to ensure higher detection accuracy during tamping, a B-point measuring trolley is usually provided on the rear side of the rear bogie, a C-point measuring trolley is provided between the rear bogie and the front bogie, and a D-point measuring trolley is provided on the front side of the front bogie.

[0058] Therefore, in this embodiment, in order to calibrate the tamping machine measurement system, the measuring fixture 4 provided in this application is set at the following points on the tamping machine body: point B (measuring the wheel hub), point C (measuring the wheel hub), and point D (measuring the wheel hub).

[0059] Specifically, the measuring fixture 4 is equipped with a horizontal scale 41 and a vertical scale 42, which facilitates the observation component 2 to observe and record the scale values ​​on the measuring fixture 4 and send the scale data to the data processing unit 1. In this embodiment, the data processing unit 1 is a tablet computer, which is equipped with computer software to calculate the scale data. The software calculates the versine value, longitudinal horizontal value, and horizontal horizontal values ​​at points B, C, and D of the line section, which are used to calibrate the tamping machine measuring system.

[0060] Preferred, such as Figures 5 to 7 As shown, the observation component 2 specifically includes: an observation instrument 21 and an image processor 22;

[0061] Specifically, in this embodiment, the observation instrument 21 is a level, but in other embodiments, the observation instrument 21 can be an instrument with optical observation function, such as a telescope.

[0062] Similarly, in this embodiment, the image processor 22 is specifically a camera. When the level 21 is used to provide an observation field of view, the image processor 22 can read and record the scale of the level 21, which facilitates the recording of the scale value on the measuring fixture 4.

[0063] The image processor 22 is electrically connected to the data processing unit 1 to convert the observation field of view into a digital signal by converting the optical signal into a digital signal and transmit it to the data processing unit 1 for calculation. In this embodiment, the specific implementation method is to connect the camera 22 to the tablet computer 1 through a data cable or wireless signal, and transmit the observation field of view of the level instrument 21 observed by the camera 22 to the tablet computer 1 for easy reading and calculation.

[0064] Furthermore, such as Figures 5 to 7 As shown, in this embodiment, the specific structure of the observation support 3 includes: a support 31, a crossbeam 32, a fixing seat 33, and a scale 34;

[0065] Since it is necessary to measure and calibrate both sides of the rail, the observation bracket 3 is designed with a symmetrical structure. Specifically, the crossbeam 31 is the main supporting component, connecting the left and right sides of the rail to maintain symmetry. The fixing seats 33 provided on both sides of the crossbeam 32 are detachably connected to the top surface of the left and right rails. Specifically, in this embodiment, the fixing seat 33 is designed with a magnetic structure. A magnet is provided in the fixing seat 33 to attract and fix the rail to the top surface. In other embodiments, other fixing methods such as snap-fit ​​can also be used.

[0066] The support 31 is set at both ends of the crossbeam 32 and is used to place the observation component 2 to facilitate the observation of the measuring fixture 4 on the left and right sides of the rail.

[0067] The scale 34 is set on the top surface of the center point of the crossbeam 32 and is used to measure the relative height difference between the left and right observation components 2, providing a reference for calculating the horizontal values ​​at points B, C, and D.

[0068] Preferred, such as Figure 8 As shown, in this embodiment, the measuring fixture 4 specifically includes: a scale bracket 43, a horizontal scale 41, a vertical scale 42, a fixture fixing base 44, and a horizontal baffle 45; in particular, this application provides three specific embodiments for the use of the measurement system calibration device, which have different arrangements of the measuring fixture 4, as described below. Figures 9 to 12 The specific structure of the measuring fixture 4 in the second embodiment will be described in detail below. In this embodiment, the measuring fixture 4 further includes a fixture beam 46 that is symmetrically arranged on the left and right rails and connected into one piece.

[0069] As an important functional component for measurement calibration, the scale bracket 43 is provided with a horizontal scale 41 along the horizontal direction and a vertical scale 42 along the vertical direction. The horizontal scale 41 and the vertical scale 42 are distributed perpendicularly to each other to ensure the reliability of the measurement references and avoid measurement errors.

[0070] The bottom of the scale bracket 43 is provided with the tooling fixing seat 44, and the side of the tooling fixing seat 44 is also provided with the transverse baffle 45 extending beyond its own bottom surface. In this embodiment, the tooling fixing seat 44 is the same as the fixing seat 33, and also adopts the magnetic seat method.

[0071] In use, the measuring fixture 4 is magnetically attracted and symmetrically positioned on the top surface of the left and right rails via the fixture fixing seat 44. At the same time, the transverse baffle 45 is close to the inner side of the rail for lateral positioning. Since the measuring fixture 4 on the left and right rails is kept symmetrical in this embodiment through the fixture beam 46, in other embodiments, if the fixture beam 46 is not used for connection, the measuring fixture 4 on the left and right rails needs to be adjusted to be symmetrically distributed.

[0072] Furthermore, in this technical solution, in each embodiment, the scale bracket 43 and the tooling fixing seat 44 are hinged together, so that the scale bracket 43 can be rotated and adjusted relative to the tooling fixing seat 44 through the connection point. Due to factors such as deformation error between the top surface of the rail to be measured and the sleeper surface, in order to ensure the accuracy of the tamping machine measurement and calibration, the scale bracket 43 can be rotated and adjusted to maintain a horizontal position.

[0073] Furthermore, such as Figure 8 As shown, the measuring fixture 4 also includes a level 47 mounted on the scale bracket 43. By mounting the level 47, it is possible to accurately detect and determine whether the scale bracket 43 is in a horizontal state, thus avoiding errors in the measurement and calibration of the tamping machine.

[0074] Furthermore, such as Figure 12As shown, since the measuring fixture 4 measures multiple points B, C, and D of the tamping machine body, when multiple sets of the measuring fixture 4 are used for simultaneous measurement, in order to avoid obstruction in the observation component 2, the scale bracket 43 is provided with multiple installation positions for the horizontal scale 41 and the vertical scale 42 to ensure that the three points B, C, and D are installed in a staggered manner, so that the values ​​of the three points can be observed simultaneously in the observation field of the observation component 2.

[0075] In addition, this technical solution also provides a method for using the measurement system calibration device, the specific steps of which are as follows:

[0076] S1, such as Figure 1 As shown, in the first embodiment, the measuring fixture 4 is arranged in a split manner, and is symmetrically distributed on the top surface of the rails along the left and right rails by being arranged at the wheel hubs of the measuring trolley at points B, C, and D.

[0077] S2. The observation component 2 is arranged on the top surface of the rail at the front or rear of the tamping machine using the observation bracket 3, and it is ensured that the scale values ​​at points B, C and D can be observed.

[0078] S3. The scale values ​​observed in S2 are processed by the data processing unit 1 to calculate the sine value, longitudinal value, and transverse value at points B, C, and D of the line section, which are then used to calibrate the tamping machine measurement system.

[0079] Preferred, such as Figure 9 As shown, in the second embodiment, the arrangement of the measuring fixture in step S1 can also be:

[0080] S1. The measuring fixture 4 is used to measure the wheel hub at point B, point C, and point D. The measuring fixture 4 is connected by a crossbeam 46, which is symmetrically distributed on the top surface of the rails along the left and right rails.

[0081] S2. The observation component 2 is arranged on the top surface of the rail at the front or rear of the tamping machine using the observation bracket 3, and it is ensured that the scale values ​​at points B, C and D can be observed.

[0082] S3. The data processing unit 1 sequentially observes the scale values ​​and calculates the versine value, longitudinal horizontal value, and transverse horizontal value at points B, C, and D of the line section, which are then used to calibrate the tamping machine measurement system.

[0083] Preferably, in the third embodiment, the arrangement of the measuring fixture in step S1 can also be:

[0084] S1. The measuring fixture 4 measures the wheel hub at point B, point C, and point D in sequence. The measuring fixture 4 is connected by a crossbeam 46, which is symmetrically distributed on the top surface of the rails along the left and right rails.

[0085] S2. The observation component 2 is arranged on the top surface of the rail at the front or rear end of the tamping machine using the observation bracket 3, ensuring that the scale values ​​at points B, C, and D can be observed. Using a set of measuring fixtures 4, multiple measurements are taken sequentially at points B, C, and D, and the scale values ​​are read multiple times using the observation component 2. The measuring fixtures 4 measure at point B (the wheel hub); the measuring fixtures 4 measure at point C (the wheel hub); the measuring fixtures 4 measure at point D (the wheel hub).

[0086] S3. The data processing unit uses the observed scale values ​​to calculate the versine value, longitudinal horizontal value, and transverse horizontal value at points B, C, and D of the line section, in order to calibrate the tamping machine measurement system.

[0087] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A calibration device for a measurement system, characterized in that, include: Observation components, observation support, measurement fixtures, and data processing unit; The observation component is placed on the top surface of the rail via the observation bracket; The measuring fixture is set at the following points on the tamping machine body: point B (measuring the wheel hub), point C (measuring the wheel hub), and point D (measuring the wheel hub). The measuring fixture is equipped with a horizontal scale and a vertical scale. The observation component observes and records the scale values ​​of the measuring fixture and sends the data to the data processing unit to calculate the versine value, longitudinal horizontal value, and horizontal horizontal values ​​at points B, C, and D of the measuring line, which are used to calibrate the tamping machine measuring system. The observation support specifically includes: a support, a crossbeam, a fixed base, and a scale; The observation support is a symmetrical structure design, and can be detachably connected to the top surface of the left and right rails by the fixed seats provided on both sides of the crossbeam. The supports are located at both ends of the crossbeam and are used to place the observation components; The scale is set on the top surface of the center point of the crossbeam to measure the relative height difference between the two observation components. The measuring fixture specifically includes: a ruler bracket, a horizontal ruler, a vertical ruler, a fixture fixing base, and a horizontal baffle; The ruler bracket is provided with a horizontal ruler along the horizontal direction and a vertical ruler along the vertical direction, with the horizontal ruler and the vertical ruler being distributed perpendicularly to each other. The bottom of the scale bracket is provided with the tooling fixing seat, and the side of the tooling fixing seat is also provided with the transverse baffle extending beyond the bottom surface; The measuring fixture is detachably and symmetrically mounted on the top surface of the left and right rails via the fixture fixing seat, and the transverse baffle is in close contact with the inner side of the rail.

2. The measurement system calibration device according to claim 1, characterized in that, The observation components specifically include: an observation instrument and an image processor; The observation instrument is used to provide an observation field of view, which facilitates the recording of the scale values ​​on the measuring fixture; The image processor is electrically connected to the data processing unit to convert the observed field of view into a digital signal and transmit it to the data processing unit for calculation.

3. The measurement system calibration device according to claim 1, characterized in that, The scale bracket is hinged to the tooling fixture, and the scale bracket can be adjusted by rotating relative to the tooling fixture via the connection point.

4. The measurement system calibration device according to claim 3, characterized in that, The measuring fixture also includes a level mounted on the ruler bracket.

5. The measurement system calibration device according to claim 4, characterized in that, The ruler bracket has multiple installation positions for the horizontal and vertical rulers, ensuring that points B, C, and D are installed in a staggered manner.

6. A method for using a calibration device for a measurement system, characterized in that, The specific steps of using the measurement system calibration device as described in any one of claims 1 to 5 include: S1. The measuring fixture is symmetrically distributed on the top surface of the rails along the left and right rails at points B, C, and D, where the wheel hubs of the trolley are measured. S2. The observation component is placed on the top surface of the rail at the front or rear of the tamping machine using the observation bracket, ensuring that the scale values ​​at points B, C, and D can be observed. S3. The scale values ​​observed in S2 are processed by the data processing unit to calculate the versine value, longitudinal horizontal value, and transverse horizontal value at points B, C, and D of the line section, which are used to calibrate the tamping machine measurement system.

7. The method of using the measurement system calibration device according to claim 6, characterized in that, Replace the arrangement of the measuring fixture in step S1 with: S1. The measuring fixture is located at point B, point C, and point D, measuring the wheel hub of the trolley, and is symmetrically distributed on the top surface of the rails along the left and right rails via a connecting device. S2. The observation component is placed on the top surface of the rail at the front or rear of the tamping machine using the observation bracket, ensuring that the scale values ​​at points B, C, and D can be observed. S3. The data processing unit sequentially observes the scale values ​​and calculates the versine value, longitudinal horizontal value, and transverse horizontal value at points B, C, and D of the line section to calibrate the tamping machine measurement system.

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