Integrated etalon group for calibrating wheel tread profile tester
By designing an integrated standard instrument group, the problem of insufficient accuracy and compatibility of traditional wheel tread shape testers in calibration is solved, realizing efficient and low-cost multi-parameter synchronous calibration, which is applicable to different track gauges and wheel conditions, and ensures train safety.
Patent Information
- Application Number
- CN202520661154.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Traditional wheel tread shape tester calibration methods suffer from systematic biases and the inability to quickly adapt to different testing equipment, resulting in insufficient calibration accuracy and high costs.
An integrated standard assembly is adopted, including a cylindrical disc-shaped hub reference component and several tread sample components. By setting multiple calibration areas and mating surfaces, multi-parameter synchronous calibration is achieved. Magnetic connection and rotating holes are used to improve installation convenience and stability.
It improves calibration accuracy and efficiency, reduces maintenance costs, adapts to different track gauges and wheel conditions, meets the needs of multiple scenarios such as high-speed rail, subway, and freight, and ensures the safe operation of trains.
Smart Images
Figure CN223870046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rail transit vehicle testing equipment, and in particular to an integrated standard device group for calibrating a wheel tread shape tester. Background Technology
[0002] The wheel tread is a core component for train operation, bearing the load of the train and track while ensuring precise train operation and safe guidance. It is a key focus in railway vehicle inspection. The wheel tread profile tester is a portable instrument used to measure the dimensional parameters of railway vehicle wheel treads. This instrument uses a built-in camera and laser to capture the shape of the object being measured, such as the wheel profile. It can measure parameters such as wheel flange thickness, tread wear, QR value, rim thickness, rim width, and wheel diameter. It is particularly suitable for testing wheel tread profile parameters in factories, production workshops, train inspection stations, station maintenance facilities, EMU depots, and urban subways under conditions where the wheel cannot be removed.
[0003] In the rail transit sector, accurate calibration of wheel tread shape parameters is a core element in ensuring train operation safety. Traditional calibration methods primarily rely on split-type standard sets. However, due to inconsistent mounting bases, these sets exhibit systematic deviations between measured flange height and tread wear data, resulting in a repeatability error exceeding ±0.1mm, which fails to meet the accuracy requirement of ≤±0.05mm for high-speed train wheels. Furthermore, the existence of various track gauge standards (1435mm / 1520mm / 1676mm) across different railway lines, coupled with the fixed structure of traditional calibration devices, makes them unable to quickly adapt to different testing equipment, necessitating the deployment of multiple calibration sets on-site.
[0004] Therefore, this application aims to propose a standardized integrated standard set that is compatible with wheel treads of different sizes / gauge standards and has high calibration accuracy. Utility Model Content
[0005] To address the problems in the existing technology, this utility model proposes an integrated standard assembly for calibrating a wheel tread shape tester, which solves the aforementioned problems.
[0006] This utility model proposes an integrated standard assembly for calibrating a wheel tread shape tester, comprising a cylindrical disc-shaped wheel hub reference component and several tread samples. The circular side of the wheel hub reference component is divided into several calibration areas corresponding to the tread samples along the circumferential direction. The cylindrical side of the wheel hub reference component is divided into several mating surfaces corresponding to the calibration areas. The inner ring surface of the tread sample is detachably connected to and fitted with the mating surfaces, and the end faces of adjacent tread samples are fitted together.
[0007] By adopting the above technical solution, the wheel hub reference component and the tread sample are combined into an integrated standard assembly. The wheel hub reference component is equipped with multiple calibration areas and mating surfaces, making the calibration of the wheel tread profile tester more convenient. When different parameters or parts need to be calibrated, this can be achieved directly by replacing the corresponding tread sample, without needing to replace the entire standard assembly or make complex adjustments. This reduces calibration difficulty and maintenance costs, and improves the efficiency of calibration work.
[0008] In some specific embodiments, the tread sample includes a first sample, a second sample, and a third sample, the calibration area includes a first calibration area, a second calibration area, and a third calibration area corresponding to the first sample, the second sample, and the third sample, respectively, and the mating surface includes a corresponding first mating surface, a second mating surface, and a third mating surface.
[0009] By adopting the above technical solution, a wheel hub reference component is divided into three calibration areas. Too many or too few calibration areas will affect the complexity of the calibration work. Different sizes of tread samples can be installed on the cylindrical surface of the reference wheel hub corresponding to different calibration areas, enabling simultaneous calibration of multiple parameters. A single installation can complete multi-dimensional testing of wheel diameter, rim height, tread wear, etc., reducing the replacement time of traditional split calibration components. At the same time, the first, second, and third samples are detachably and tightly fitted with the first, second, and third mating surfaces, which can eliminate the reference error caused by assembly gaps and improve repeatability. In addition, the end faces of adjacent samples fit together to adapt to testing equipment with different track gauges, covering the needs of high-speed rail / subway / freight scenarios. Furthermore, the detachable samples can reduce replacement costs, and only a single sample needs to be replaced when local wear occurs.
[0010] In some specific embodiments, the included angle between the centers of the first calibration area, the second calibration area, and the third calibration area is 120°.
[0011] By adopting the above technical solution, the circular side of the wheel hub reference component is divided into three 120° sector areas, making full and uniform use of the entire circumferential space. When installing the tread sample, since the angles of the three calibration areas are equal, the sample can be more conveniently set around the cylindrical surface of the wheel hub reference component. The connection and fit between adjacent samples are tighter, improving the installation accuracy and stability of each sample.
[0012] In some specific embodiments, the diameter of the hub reference component corresponding to the first calibration area, the second calibration area, and the third calibration area is 700mm.
[0013] By adopting the above technical solution, the diameter of the fixed wheel hub reference component facilitates the setting of precise calibration parameters and calibration operations. During the calibration process, the operator can accurately adjust the measurement parameters of the tester based on the standard diameter of 700mm to ensure the accuracy and consistency of the calibration parameters.
[0014] In some specific embodiments, the radial thicknesses at the tread base points of the first sample, the second sample, and the third sample are 70mm, 110mm, and 150mm, respectively.
[0015] By adopting the above technical solution and setting up samples of different thicknesses, the wheel condition under various real-world working conditions can be simulated. The three different thicknesses of the samples can cover different degrees of wheel wear, from new to old. After calibration with these samples of different thicknesses, the testing instrument can more accurately measure the tread shape of wheels at different wear stages, promptly detect abnormal wheel wear, and ensure the safe operation of trains.
[0016] In some specific embodiments, the diameters of the hub reference component corresponding to the first calibration area, the second calibration area, and the third calibration area are 700mm, 740mm, and 780mm, respectively.
[0017] By adopting the above technical solution, the hub reference component can simulate the wheel diameter of different types of trains in different application scenarios. Due to the different design purposes and operating conditions, the wheel diameter of each type of train will also be different. Furthermore, during long-term use, a wheel will gradually wear down due to factors such as friction with the track, resulting in a continuous reduction in wheel diameter. The degree of wear on wheel diameter is also different at different stages of use.
[0018] In some specific embodiments, the radial thickness at the tread base point of the first sample, the second sample, and the third sample is 70 mm.
[0019] By adopting the above technical solution, the radial thickness of the tread sample is standardized. The 70mm radial thickness provides a clear and consistent standard for the calibration of the wheel tread shape tester. When the tester calibrates the tread samples corresponding to different diameter fits, the fixed value of the radial thickness of the tread sample reduces the variables and makes the calibration process more standardized.
[0020] In some specific embodiments, the inner ring surfaces of the first sample, the second sample, and the third sample are magnetically connected to the first mating surface, the second mating surface, and the third mating surface, respectively.
[0021] By adopting the above technical solution, the magnetic connection method makes the connection between the tread sample and the wheel hub reference component faster. Operators do not need to perform complicated mechanical installation operations, such as tightening screws or inserting slots. Similarly, when it is necessary to remove the tread sample, simply turn the switch to turn off the magnetic force to remove the tread sample from the wheel hub reference component. Compared with the traditional connection method, the disassembly process is much easier.
[0022] In some specific embodiments, a rotating hole with a diameter of 120mm is provided at the center of the wheel hub reference component.
[0023] By adopting the above technical solution, the hub reference component can be rotatably connected to some support structures (such as a rotating seat), ensuring that the hub reference component can rotate stably around its center.
[0024] Compared with the prior art, the beneficial effects of this application are as follows:
[0025] This application discloses an integrated standard assembly for calibrating a wheel tread shape tester. The wheel hub reference component is divided into sections and detachably and tightly fitted with different tread samples, enabling simultaneous calibration of multiple parameters. This significantly reduces the replacement time of traditional separate calibration components, eliminates reference errors caused by assembly gaps, improves repeatability, and is compatible with different track gauge testing equipment, meeting the needs of various scenarios such as high-speed rail, subway, and freight. It also reduces manufacturing and replacement costs. Secondly, the included angle of the calibration area's center is 120°, facilitating sample installation and improving installation accuracy and stability. Setting a fixed diameter or different diameter calibration areas facilitates calibration parameter setting and can simulate different wheel diameters and wear conditions. Furthermore, setting samples with different tread radial thicknesses can simulate various wheel wear conditions, while a uniform tread radial thickness reduces calibration variables and standardizes the calibration equipment. Additionally, magnetic connections facilitate sample installation and disassembly, avoiding complex mechanical operations. Finally, a rotating hole is provided at the wheel center of the wheel hub reference component, facilitating rotational connection with the support structure and ensuring stable rotation of the wheel hub reference component. This provides a stable and reliable foundation for tester calibration, comprehensively improving calibration efficiency and accuracy. Attached Figure Description
[0026] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.
[0027] Figure 1 This is an exploded view of the structure of an integrated standard array according to an embodiment of this application;
[0028] Figure 2 This is a schematic cross-sectional view of a tread sample according to a specific embodiment of this application;
[0029] Figure 3 This is an exploded view of the structure of an integrated standard array according to another embodiment of this application;
[0030] Figure 4 This is a schematic cross-sectional view of the first copy according to another specific embodiment of this application;
[0031] Figure 5 This is a position feature diagram of the wheel tread profile curve according to an embodiment of this application.
[0032] The meaning of each number in the diagram:
[0033] Hub reference component 01, first calibration area 02, second calibration area 03, third calibration area 04, first mating surface 05, second mating surface 06, third mating surface 07, first sample part 08, second sample part 09, third sample part 10, rotating hole 11. Detailed Implementation
[0034] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and illustrate illustrative specific embodiments in which the present invention may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.
[0035] This application proposes an integrated standard assembly for calibrating a wheel tread shape tester. Figure 1 An exploded view of the structure of an integrated standard array according to an embodiment of this application is shown, as follows: Figure 1 As shown, the integrated standard assembly includes a cylindrical disc-shaped hub reference component 01 and several tread samples. The circular side of the hub reference component 01 is divided into several calibration areas corresponding to the tread samples along the circumferential direction. The cylindrical side of the hub reference component 01 is divided into several mating surfaces corresponding to the calibration areas. The inner ring surface of the tread sample is detachably connected to and fitted with the mating surfaces, and the end faces of adjacent tread samples are fitted together.
[0036] Specifically, when designing this integrated standard set, the appropriate number of tread samples, calibration areas, and mating surfaces can be selected according to the actual calibration application, and the inner ring surface of the tread sample should be matched with the size of the mating surface.
[0037] By adopting the above technical solution, the wheel hub reference component 01 and the tread sample are combined into an integrated standard assembly. The wheel hub reference component 01 is equipped with multiple calibration areas and mating surfaces, making the calibration of the wheel tread shape tester more convenient. When different parameters or parts need to be calibrated, this can be achieved directly by replacing the corresponding tread sample, without needing to replace the entire standard assembly or make complex adjustments. This reduces calibration difficulty and maintenance costs, and improves the efficiency of calibration work.
[0038] Specifically, as a preferred embodiment, there are three tread samples, three calibration surfaces, and three mating surfaces. The tread samples include a first sample 08, a second sample 09, and a third sample 10. The calibration areas include a first calibration area 02, a second calibration area 03, and a third calibration area 04 corresponding to the first sample 08, the second sample 09, and the third sample 10, respectively. The mating surfaces include a first mating surface 05, a second mating surface 06, and a third mating surface 07.
[0039] Specifically, the first mating surface 05, the second mating surface 06, and the third mating surface 07 are divided by the cylindrical surface of the hub reference component 01 corresponding to the arc edge range of the first calibration area 02, the second calibration area 03, and the third calibration area 04. In the figure, the edge lines of the first calibration area 02, the second calibration area 03, the third calibration area 04, and the first mating surface 05, the second mating surface 06, and the third mating surface 07 are represented by dashed lines for easy understanding. In actual production, the dashed lines can be omitted for indication.
[0040] Furthermore, the first sample 08, the second sample 09, and the third sample 10 are all sections cut from a complete annular train wheel flange tread, and the center angle covered by each sample is the same as the center angle of the corresponding calibration area.
[0041] By adopting the above technical solution, a wheel hub reference component 01 is divided into three calibration areas. Too many or too few calibration areas will affect the complexity of the calibration work. Different sizes of tread samples can be installed on the cylindrical surface of the reference wheel hub corresponding to different calibration areas, which can realize multi-parameter synchronous calibration. A single installation can complete multi-dimensional detection of wheel diameter, wheel flange height, tread wear, etc., reducing the replacement time of traditional split calibration components. At the same time, the first sample 08, the second sample 09, and the third sample 10 are detachably and tightly fitted with the first mating surface 05, the second mating surface 06, and the third mating surface 07, which can eliminate the reference error caused by assembly gaps and improve the repeatability accuracy. In addition, the end faces of adjacent samples fit together to adapt to the detection equipment of different track gauges, covering the needs of high-speed rail / subway / freight scenarios. Furthermore, the detachable samples can reduce replacement costs, and only a single sample needs to be replaced when local wear occurs.
[0042] In some specific embodiments, the included angle between the centers of the first calibration area 02, the second calibration area 03, and the third calibration area 04 is 120°.
[0043] Specifically, the 120° included angle divides the circular side of the wheel hub reference part 01 into three equal parts, so that the angle range corresponding to each tread sample is the same, avoiding calibration errors caused by different angles.
[0044] By adopting the above technical solution, the circular side of the hub reference part 01 is divided into three 120° sector areas, making full and uniform use of the entire circumferential space. When installing the tread sample, since the angles of the three calibration areas are equal, the sample can be more conveniently set around the cylindrical surface of the hub reference part 01. The connection and fit between adjacent samples are tighter, improving the accuracy and stability of the installation of each sample.
[0045] In some specific embodiments, the diameter of the hub reference component 01 corresponding to the first calibration area 02, the second calibration area 03, and the third calibration area 04 is 700mm.
[0046] Specifically, since each calibration zone has the same diameter, the hub reference piece 01 is a cylindrical disk with flush edges.
[0047] By adopting the above technical solution, the diameter of the fixed hub reference component 01 facilitates the setting of precise calibration parameters and calibration operations. During the calibration process, the operator can accurately adjust the measurement parameters of the tester based on the standard diameter of 700mm to ensure the accuracy and consistency of the calibration parameters.
[0048] Figure 2 A schematic cross-sectional view of a tread sample according to a specific embodiment of this application is shown, as follows. Figure 1-2 As shown, the radial thicknesses at the tread base points of the first sample 08, the second sample 09, and the third sample 10 are 70mm, 110mm, and 150mm, respectively.
[0049] Specifically, Figure 5 A positional feature diagram of the wheel tread profile curve according to an embodiment of this application is shown, such as... Figure 2 and Figure 5As shown, the radial thicknesses at the tread base points of the cross-sections of the first sample 08, the second sample 09, and the third sample 10 are 70mm, 110mm, and 150mm, respectively, and the cross-sectional geometric dimensions of the first sample 08, the second sample 09, and the third sample 10 are also different. In the curve position characteristics of the wheel tread profile, Fw represents the flange thickness, Fh represents the flange height, QR represents the flange slope, point A represents the vertical downward h1 position of the tread curve vertex, the tread base point O represents the inward L (70mm) position of the rim surface of the flange tread curve, and point B represents the upward H position of the tread curve L (70mm) position point (tread base point). The tread base point O of the tread sample of some dimensions is located at the center of the width of its cross-section.
[0050] By adopting the above technical solution and setting up samples of different sizes, the wheel condition under various real-world working conditions can be simulated. Three samples of different thicknesses represent wheels of different diameters, covering different levels of wheel wear from new to old. After calibration with these samples of different thicknesses, the testing instrument can more accurately measure the tread shape of wheels at different wear stages, promptly detect abnormal wheel wear, and ensure the safe operation of trains.
[0051] Figure 3 An exploded view of the structure of an integrated standard array according to another embodiment of this application is shown, as follows: Figure 3 As shown, the diameters of the hub reference component 01 corresponding to the first calibration area 02, the second calibration area 03, and the third calibration area 04 are 700mm, 740mm, and 780mm, respectively.
[0052] Specifically, since the diameters of the first calibration area 02, the second calibration area 03, and the third calibration area 04 are different, the edge of the hub reference component 01 is different from that of the previous embodiment and is not flush. Therefore, the areas of the first mating surface 05, the second mating surface 06, and the third mating surface 07 are also different. The only thing that the two embodiments have in common is that the included angle between the centers of the first calibration area 02, the second calibration area 03, and the third calibration area 04 is 120°.
[0053] By adopting the above technical solution, the hub reference component 01 can simulate the wheel diameter of different types of trains in different application scenarios. Due to the different design purposes and operating conditions, the wheel diameter of each type of train will also be different. Furthermore, during long-term use, a wheel will gradually wear down due to factors such as friction with the track, resulting in a continuous reduction in the wheel diameter. The degree of wear on the wheel diameter is also different at different stages of use.
[0054] Figure 4 A first cross-sectional schematic diagram of a sample according to another specific embodiment of this application is shown, as follows: Figure 3-4As shown in the figure, taking the cross-sectional schematic diagram of the first sample 08 as an example, the radial thickness at the tread base point of the first sample 08, the second sample 09, and the third sample 10 is 70mm.
[0055] Since the diameters of the first mating area, the second mating area, and the third mating area are different in this embodiment, the radial thickness at the tread base point of the cross-section of the first sample 08, the second sample 09, and the third sample 10 is 70mm.
[0056] By adopting the above technical solution, the radial thickness at the tread base point of the tread sample is standardized. The 70mm radial thickness provides a clear and consistent standard for the calibration of the wheel tread shape tester. When the tester calibrates the tread samples corresponding to mating areas of different diameters, the fixed value of the radial thickness reduces the variables and standardizes the calibration equipment.
[0057] In some specific embodiments, the inner ring surfaces of the first sample 08, the second sample 09, and the third sample 10 are magnetically connected to the first mating surface 05, the second mating surface 06, and the third mating surface 07, respectively.
[0058] Specifically, the connection method between the tread sample and the mating curved surface is not limited to magnetic connection. Traditional bolt connections and other detachable connections can also be used. Magnetic connection is only considered as the optimal technical solution in this application.
[0059] By adopting the above technical solution, the magnetic connection method makes the connection between the tread sample and the hub reference part 01 faster. Operators do not need to perform complicated mechanical installation operations, such as tightening screws or inserting slots. Similarly, when it is necessary to disassemble the tread sample, the tread sample can be removed from the hub reference part 01 simply by overcoming the magnetic force. Compared with the traditional connection method, the disassembly process is easier.
[0060] Specifically, in practical applications, a switch can be set to control the magnetic force of the standard instrument. When installing the tread sample, rotating the switch activates the magnetic force, which attracts the tread sample to the wheel hub reference part 01. When disassembly is required, rotating the switch deactivates the magnetic force, which removes the tread sample from the wheel hub reference part 01.
[0061] In some specific embodiments, a rotating hole 11 is provided at the center of the wheel hub reference component 01, and the diameter of the rotating hole 11 is 120mm.
[0062] By adopting the above technical solution, the hub reference component 01 can be rotatably connected to some support structures (such as rotating seats), ensuring that the hub reference component 01 can rotate stably around its center.
[0063] It should be noted that the integrated structure of this application is conducive to quick replacement when the tread sample is damaged or other sizes or models are required. However, it cannot be replaced after the integrated standard is traced back to the next traceability to ensure traceability consistency. When the tread sample is disassembled or replaced, or when the fit between the tread sample and the wheel hub reference part 01 becomes loose, traceability must be carried out again.
[0064] Compared with the prior art, the beneficial effects of this application are as follows:
[0065] The integrated standard assembly for calibrating the wheel tread shape tester disclosed in this application divides the wheel hub reference component 01 into sections that can be detachably and tightly fitted with different tread samples. This enables simultaneous calibration of multiple parameters, significantly reducing the replacement time of traditional separate calibration components, eliminating reference errors caused by assembly gaps, improving repeatability, and adapting to different track gauge testing equipment. It meets the needs of various scenarios such as high-speed rail, subway, and freight, while also reducing replacement costs. Secondly, the included angle of the calibration area's center is 120°, facilitating sample installation and improving installation accuracy and stability. Setting a fixed diameter or different diameter calibration areas facilitates calibration parameter setting and can simulate different wheel diameters and wear conditions. Furthermore, setting different wheel diameters can simulate various wheel wear conditions, while unifying the radial thickness at the tread base point reduces calibration variables, making calibration more standardized. Additionally, magnetic connection makes sample installation and disassembly convenient, avoiding complex mechanical operations. Finally, a rotating hole 11 is provided at the wheel center of the wheel hub reference component 01, facilitating rotational connection with the support structure and ensuring stable rotation of the wheel hub reference component 01. This provides a stable and reliable foundation for tester calibration, comprehensively improving calibration efficiency and accuracy.
[0066] Obviously, those skilled in the art can make various modifications and changes to the embodiments of this utility model without departing from the spirit and scope of this utility model. In this way, this utility model is also intended to cover such modifications and changes if they fall within the scope of the claims of this utility model and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered as limiting the scope.
Claims
1. An integrated standard assembly for calibrating a wheel tread shape tester, characterized in that, The device includes a cylindrical disc-shaped hub reference component and several tread samples. The circular side of the hub reference component is divided into several calibration areas corresponding to the tread samples along the circumferential direction. The cylindrical surface of the hub reference component is divided into several mating surfaces corresponding to the calibration areas. The inner ring surface of the tread samples is detachably connected to and fitted with the mating surfaces, and the end faces of adjacent tread samples are fitted together.
2. The integrated standard set according to claim 1, characterized in that, The tread sample includes a first sample, a second sample, and a third sample. The calibration area includes a first calibration area, a second calibration area, and a third calibration area corresponding to the first sample, the second sample, and the third sample, respectively. The mating surface includes a corresponding first mating surface, a second mating surface, and a third mating surface.
3. The integrated standard set according to claim 2, characterized in that, The included angle between the centers of the first calibration area, the second calibration area, and the third calibration area is 120°.
4. The integrated standard assembly according to claim 2, characterized in that, The diameter of the hub reference component corresponding to the first calibration area, the second calibration area, and the third calibration area is 700mm.
5. The integrated standard assembly according to claim 4, characterized in that, The thicknesses at the tread base points of the first, second, and third samples are 70mm, 110mm, and 150mm, respectively.
6. The integrated standard set according to claim 2, characterized in that, The diameters of the hub reference component corresponding to the first calibration area, the second calibration area, and the third calibration area are 700mm, 740mm, and 780mm, respectively.
7. The integrated standard set according to claim 6, characterized in that, The thickness at the tread base point of the first, second, and third samples is 70 mm.
8. The integrated standard set according to claim 3, characterized in that, The inner ring surfaces of the first, second, and third samples are magnetically connected to the first, second, and third mating surfaces, respectively.
9. The integrated standard set according to claim 1, characterized in that, The hub reference component has a rotating hole at the center of the wheel, and the diameter of the rotating hole is 120mm.