THDS equipment comprehensive calibration device

Abstract

The invention relates to the field of railway detection, in particular to a THDS equipment comprehensive calibration device. Comprising a rail clamping device, a calibration ruler supporting rod, a fixed ruler, a sliding ruler, an electronic collector and a sensor group, the rail clamping device is detachably fixed on a steel rail, and the calibration ruler supporting rod is vertically connected with the rail clamping device; the fixed ruler is adjustably connected with the calibration ruler supporting rod through a ruler fastening device; the sliding scale is slidably arranged on the fixed scale, and the surface of the sliding scale is provided with a vertical center line used for being aligned with a laser point; the electronic collector is fixed at one end of the fixed scale and is used for collecting data; the sensor group is integrated on the electronic collector; the overall size of the device is optimized to be within 600mm, and the weight is not greater than 1.5 kg, so that the device can be quickly disassembled and assembled, the device is greatly convenient to carry by inspection personnel, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of railway detection, specifically to a comprehensive calibration device for THDS equipment. Background Technology

[0002] Railway vehicle operation safety monitoring and detection equipment is an important guarantee for railway operation safety. Among them, the detection accuracy of THDS equipment directly affects the monitoring of bearing safety of running trains. Intelligent wheel sensors are key devices for detecting train speed and axle counting, and are also an important basis for railway transportation cost settlement.

[0003] Existing detection devices have the following drawbacks: 1. Inconvenient to carry: Existing detection devices are typically over 2 meters in size and weigh more than 5 kilograms, making them inconvenient to carry for railway line operations. Operation is cumbersome, and poor insulation can easily cause malfunctions in the railway's red light strip. 2. Inaccurate measurement accuracy: In THDS probe azimuth angle detection, existing detection devices are difficult to calibrate with the measurement reference point and measuring scale, resulting in significant measurement errors. Measurement values ​​vary considerably depending on the operator's actions, making accurate measurement of the probe azimuth angle difficult. 3. Insufficient THDS equipment maintenance and testing functions: Multiple detection devices are required during testing, along with rulers, tape measures, etc., and these cannot fully meet measurement needs. Furthermore, wheel sensor installation dimensions vary significantly, making it impossible to measure other installation dimensions, resulting in poor compatibility. 4. Existing detection devices lack data recording capabilities, making it impossible to track and analyze minute changes in the geometric dimensions of the THDS equipment installation. Summary of the Invention

[0004] To address the problems mentioned in the prior art, this invention proposes a comprehensive calibration device for THDS equipment. It has a simple structure, is easy to carry, lightweight, and convenient for on-site installation, further improving the detection accuracy. In addition, it also has a detection data monitoring function, enabling the tracking of trends in minute changes in the geometric dimensions of the installed equipment, effectively solving the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This invention proposes a comprehensive calibration device for THDS equipment, including a rail clamping device, a calibration scale support rod, a fixed scale, a sliding scale, an electronic data acquisition unit, and a sensor group; The rail clamping device is detachably fixed to the rail, wherein the calibration rod is perpendicularly connected to the rail clamping device; The fixed scale is adjustablely connected to the calibration scale support rod via a scale fastening device. The sliding scale is slidably mounted on the fixed scale, wherein the surface of the sliding scale is provided with a vertical center line for aligning the laser point; The electronic data acquisition device is fixed to one end of the fixed ruler for data acquisition. The sensor array is integrated into the electronic data acquisition unit. As a further improvement of the present invention, the rail clamping device includes a clamping block and a rail clamping fixing bolt connected to the clamping block; The rail fixing bolts are tightened to detachably fix the locking block to the rail.

[0006] As a further improvement of the present invention, the card block is also provided with a laser emitter, which is used to detect whether the rail clamping device is level with the rail.

[0007] As a further improvement of the present invention, the calibration rod is vertically connected to the rail clamping device by a rod fixing bolt.

[0008] As a further improvement of the present invention, the electronic data acquisition device includes a liquid crystal display, multiple function buttons, a power switch, a charging indicator light, and a charging port; wherein the function buttons are used to select the detection mode and input data.

[0009] As a further improvement of the present invention, the sensor group includes a sliding scale electronic ranging probe, a magnetic field strength sensor, and a laser ranging sensor.

[0010] As a further improvement of the present invention, it also includes a level, which is mounted on a fixed ruler for detecting whether the fixed ruler and the rail are set horizontally.

[0011] As a further improvement of the present invention, the fixed scale is provided with a guide rail that is compatible with the sliding scale, and the sliding scale can move along the guide rail on the fixed scale.

[0012] As a further improvement of the present invention, the electronic data acquisition device is mounted on a fixed bracket.

[0013] As a further improvement of the present invention, the ruler fastening device is a fastening screw.

[0014] Compared with the prior art, the present invention achieves the following technical effects: This invention allows for rapid deployment through a rail-fixed and modular assembly method. The overall size of the device is optimized to within 600mm, and the weight is no more than 1.5kg. This enables the device to be quickly disassembled and assembled, greatly facilitating the carrying of inspection personnel. It completely eliminates the problems of traditional devices being heavy, difficult to transport, and time-consuming to install, significantly reducing the labor intensity of operators and further improving work efficiency.

[0015] This invention, through the combination of a fixed scale and a sliding scale, along with an electronic data acquisition device, can accurately detect the displacement in the X and Y directions. Compared with existing technologies that rely on manual measurement using rulers, tape measures, etc., which are difficult to calibrate and have large human errors, this device effectively eliminates human reading errors and operational arbitrariness, further reducing the overall error of azimuth angle measurement and ensuring the accuracy and repeatability of the detection data.

[0016] The fixed and sliding scales of this invention can meet the needs of most existing THDS equipment models, offering high versatility and effectively solving the problem of compatibility of testing tools caused by incompatible equipment models in railway sites. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the electronic data acquisition device of the present invention; Figure 3 This is a schematic diagram of the fixed scale of the present invention; Figure 4 This is a schematic diagram of the rail clamping device of the present invention; Figure 5 This is a schematic diagram of the bottom of the fixing bracket of the present invention.

[0018] Reference numerals in the attached diagram: 1. Electronic data acquisition unit; 2. LCD display; 3. Function buttons; 3-1. Down button; 3-2. Up button; 3-3. Confirm button; 4. Charging indicator light; 5. Level; 6. Sliding scale; 7. Fixed scale; 8. Fixed bracket; 9. Power switch; 10. Charging port; 11. Scale fastening device; 12. Calibration scale support rod; 13. Support rod fixing bolt; 14. Laser power supply box; 15. Laser switch; 16. Rail fixing bolt; 17. Rail clamping device; 18. Laser emitter; 19. Sliding scale electronic distance measuring probe; 20. Laser distance measuring sensor; 21. Magnet magnetic field strength sensor. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0021] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0028] See Figure 1 This embodiment proposes a comprehensive calibration device for THDS equipment, including a rail clamping device 17, a calibration scale support rod 12, a fixed scale 7, a sliding scale 6, an electronic data acquisition unit 1, and a sensor group. The rail clamping device 17 is detachably fixed to the rail, wherein the calibration rod 12 is perpendicularly connected to the rail clamping device 17. The fixed scale 7 is adjustablely connected to the calibration scale support rod 12 via the scale fastening device 11; The sliding scale 6 is slidably mounted on the fixed scale 7, wherein the surface of the sliding scale 6 is provided with a vertical center line for aligning the laser point; The electronic data acquisition device 1 is fixed to one end of the fixed scale 7 for data acquisition; The sensor array is integrated into the electronic data acquisition unit 1.

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0030] See Figure 1 In this embodiment, the bottom of the THDS equipment integrated calibration device is a rail clamping device 17; specifically, the rail clamping device 17 includes a clamping block and rail clamping fixing bolts 16, see [link to documentation]. Figure 4 The clamp can be directly clamped to the inside of the rail head or the rail web and fixed by the rail clamp fixing bolt 16. The clamp connection method ensures that the whole device has a stable foundation and avoids measurement errors caused by shaking of the device.

[0031] In the embodiment, the upper part of the rail clamping device 17 is vertically connected to the calibration scale support rod 12 via the support rod fixing bolt 13. The calibration scale support rod 12 actually plays a supporting role and is used to support the fixed scale at the top. When connecting, it is necessary to ensure that the verticality of the device meets the requirements.

[0032] In the embodiment, the top end of the calibration rod 12 is connected to the fixed scale 7 via the scale fastening device 11. The scale fastening device 11 is preferably a fastening screw with a handle. The fixed connection is achieved by the fastening screw, which can realize a small range of angle or horizontal position adjustment of the fixed scale 7.

[0033] In this embodiment, the fixed scale 7 is a rigid scale body with precise graduations engraved on its surface. A guide rail structure or a groove structure can be machined inside the fixed scale 7, so that the sliding scale 6 can be calibrated with the guide rail structure or groove structure, allowing the sliding scale 6 to move axially along the fixed scale 7. In this embodiment, the surface of the sliding scale 6 is engraved with a vertical center line, which can be used as a reference for accurately aligning the laser spot when performing THDS device probe azimuth angle detection.

[0034] An electronic data collector 1 is installed at one end of the fixed scale 7. In this embodiment, the electronic data collector 1 is mainly installed on the fixed scale 7 by a dedicated fixed bracket 8, which can ensure that the electronic data collector 1 will not be displaced or fall off due to vibration during field use.

[0035] See Figure 2 The electronic data acquisition unit 1 integrates an LCD display 2, function buttons 3 for menu selection and numerical input, a power switch 9, and a charging indicator light 4. The function buttons 3 mainly include a down button 3-1, an up button 3-2, and an OK button 3-3. Specifically, the probe detection function is selected via the LCD display 2, the down button 3-1 and the up button 3-2 are used to adjust the offset data in the Y direction, and the OK button 3-3 is used to enter the detection interface or save the measurement data.

[0036] A universal charging port 10, preferably a TYPE-C interface, is provided on the side of the electronic data acquisition unit 1 for charging the built-in battery or for wired data communication with a host computer.

[0037] See Figure 3 and Figure 5The electronic data acquisition unit 1 also integrates a sensor group, which includes a sliding scale electronic distance measuring probe 19, used to non-contactly measure the displacement of the sliding scale 6 relative to the electronic data acquisition unit 1, i.e., the displacement in the X direction, when the sliding scale 6 moves, and automatically convert it into an electrical signal; a laser distance measuring sensor 20, used to measure the height of the top surface of the magnet relative to the laser distance measuring sensor 20 in the magnet detection mode; and a magnet magnetic field strength sensor 21, used to directly detect the magnetic flux intensity of the wheel sensor, i.e., the magnet, and determine whether its performance meets the standards.

[0038] like Figure 4 As shown, a laser emitter 18 is also provided above the rail clamping device 17. The laser emitter 18 is powered by the laser power supply box 14 and controlled by the laser switch 15. During installation, turning on the laser emitter 18 will create a light spot on the opposite rail. By observing the specific position of the light spot on the rail, such as the upper edge of the rail surface, it is possible to quickly and intuitively determine and adjust whether the rail clamping device 17 is level with the rail.

[0039] In addition, a level 5, preferably a bubble level, is embedded in the fixed scale 7. After the initial laser positioning, the levelness of the fixed scale 7 can be finally confirmed by observing whether the bubble in the level 5 is centered. Through the dual cooperation of laser and level, the measurement error caused by the non-level reference of this device is fundamentally eliminated.

[0040] The device operates in two main detection modes: one is probe azimuth angle detection mode, and the other is wheel sensor detection.

[0041] When performing probe azimuth angle detection, the operator first installs the rail clamping device 17 on the rail at a distance of 470mm from the focal plane of the THDS device probe lens; then, turns on the laser emitter 18 and observes the level 5. By slightly adjusting the angle of the rail clamping device 17 and the fixed scale 7, the operator ensures that the entire device is in a horizontal state. Then, all the rail clamping fixing bolts 16, the support rod fixing bolts 13 and the scale fastening device 11 are tightened to achieve fixation.

[0042] After fixing, turn on the power of the electronic data acquisition unit 1 and select the probe detection mode using function button 3. At this time, install and turn on the THDS device's own probe laser calibrator, which will emit a laser beam. The operator slides the sliding scale 6 until the laser spot falls precisely on the vertical center line of the sliding scale 6. The operator can then directly read the X-direction displacement value from the scale of the fixed scale 7. Simultaneously, the sliding scale electronic distance measuring probe 19 will also collect the X-direction displacement at this moment, and the two can be cross-checked. Then, observe the specific position of the laser spot on the vertical center line. If there is a vertical offset, input this Y-direction offset value into the system using function button 3. Finally, press the confirmation button 3-3, and the electronic data acquisition unit 1 will save the measured X and Y direction coordinate data.

[0043] When performing wheel sensor testing, first select the magnet detection mode on the electronic data acquisition unit 1. Then, loosen the scale fastening device 11, remove the entire fixed scale 7 from the calibration scale support rod 12, and place its reference surface directly flat on the rail with the magnet installed, aligning it with the center line of the magnet. Simultaneously, observe the level 5 to ensure it is placed horizontally. At this time, the laser distance sensor 20 will automatically measure and display the height value of the magnet, and the magnet magnetic field strength sensor 21 will display the real-time magnetic field strength value. After the operator confirms that the data is stable, press the OK button to save. In addition, to detect the installation distance between two magnets, the reference surface of the fixed scale 7 can be placed close to the outside of one magnet, and then the sliding scale 6 can be slid until its edge is aligned with the same side of the other magnet. The sliding distance read at this time is the distance between the two magnets, and this data can also be automatically collected and saved by the electronic distance probe 19.

[0044] This invention achieves automatic data acquisition, digital display, and electronic storage by connecting the rail clamping device 17, the calibration rod 12, the fixed scale 7, and the sliding scale 6, and by highly integrating the electronic data acquisition unit 1, the sliding scale electronic distance measuring probe 19, the laser distance measuring sensor 20, and the magnetic field strength sensor 21. This makes the device not only compact, lightweight, and portable, but also fundamentally reduces human intervention, ensuring high accuracy and repeatability of measurement results. Furthermore, its modular design allows for easy adaptation to different models of THDS equipment, completely changing the previous cumbersome operation mode that required carrying multiple tools.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A THDS device comprehensive calibration apparatus, characterized in that, The rail clamping device, the calibration ruler support, the fixed ruler, the sliding ruler, the electronic collector and the sensor group are included. The rail clamping device is detachably fixed on the steel rail, and the calibration ruler support is connected with the rail clamping device perpendicularly. The fixed ruler is adjustably connected with the calibration ruler support through a ruler fastening device. The sliding ruler is slidably arranged on the fixed ruler, and a vertical center line for aligning a laser point is arranged on the surface of the sliding ruler. The electronic collector is fixed at one end of the fixed ruler for data collection. The sensor group is integrated on the electronic collector.

2. The THDS device comprehensive calibration apparatus of claim 1, wherein, The rail clamping device includes a clamping block and a rail clamping bolt connected with the clamping block. The rail clamping bolt is used to detachably fix the clamping block on the steel rail by screwing.

3. The THDS device comprehensive calibration apparatus of claim 2, wherein, A laser emitter is further arranged on the clamping block, and the laser emitter is used to detect whether the rail clamping device is kept horizontal with the steel rail.

4. The THDS device integrated calibration apparatus of claim 1, wherein, The calibration ruler support is connected with the rail clamping device perpendicularly through a support bolt.

5. The THDS device integrated calibration apparatus of claim 1, wherein, The electronic collector includes a liquid crystal display, a plurality of function buttons, a power switch, a charging display lamp and a charging port.

6. The THDS device integrated calibration apparatus of claim 1, wherein, The function buttons are used to select a detection mode and input data.

7. The THDS device integrated calibration apparatus of claim 1, wherein, The sensor group includes a sliding ruler electronic distance measuring probe, a magnetic steel magnetic field intensity sensor and a laser ranging sensor.

8. The THDS device integrated calibration apparatus of claim 1, wherein, A level gauge is further arranged on the fixed ruler, and the level gauge is used to detect whether the fixed ruler is arranged horizontally with the steel rail.

9. The THDS device integrated calibration apparatus of claim 1, wherein, A guide rail suitable for the sliding ruler is arranged on the fixed ruler, and the sliding ruler can move on the fixed ruler along the guide rail.

10. The THDS device integrated calibration apparatus of claim 1, wherein, The electronic collector is arranged on a fixed support. The ruler fastening device is a fastening screw.

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