Wheel damping groove diameter measuring device and use method thereof

Abstract

The invention provides a wheel damping groove diameter measuring device and a use method thereof, the wheel damping groove diameter measuring device comprises a measuring scale, and the measuring scale comprises a main body structure; the positioning unit is adjustably arranged at one end of the main body structure and is used for positioning the measurement position of the wheel damping groove; and the measuring unit is adjustably arranged at one end, opposite to the positioning unit, of the main body structure, and the working end of the measuring unit is movable and is used for measuring the diameter of the wheel damping groove. Through the positioning unit and the measuring unit which are adjustably arranged on the main body structure, the measuring precision of the wheel damping groove diameter measuring device can be improved, the measuring error can be reduced, meanwhile, the stability and the operation convenience of the measuring device are guaranteed, and the wheel damping groove diameter measuring device is suitable for manufacturing, overhauling and maintaining processes of rail train wheels.

Description

Technical Field

[0001] The present invention belongs to the technical field of measurement, and particularly relates to a device for measuring the diameter of a wheel damping groove, and also relates to a method for using the device for measuring the diameter of a wheel damping groove. Background Art

[0002] During the manufacturing and maintenance of rail trains, the measurement of the diameter of the wheel damping groove is an important link to ensure the safe operation of the vehicle. The diameter of the damping groove needs to meet strict manufacturing standards to ensure the stability and durability of the vehicle during operation. However, the existing measurement methods have many limitations, affecting the measurement accuracy and efficiency.

[0003] Currently, traditional measurement tools mainly include vernier calipers, universal diameter measuring instruments, etc. However, when measuring the diameter of the wheel damping groove, these tools often interfere with the wheel hub part, making it difficult to directly measure the diameter of the damping groove, resulting in limited measurement process.

[0004] To overcome the measurement interference problem, the existing technology usually adopts indirect measurement with vernier calipers and cylindrical pads. However, due to the differences in wheel structures and wheel types, it is difficult for traditional measurement tools to accurately adapt to the damping grooves of different vehicle models, that is, the measurement tools cannot fully fit the shape and size of the damping groove, resulting in limited measurement methods and difficult to guarantee the accuracy of the measurement results. In addition, the operation process of indirect measurement is cumbersome, which not only increases the measurement time, but also is easily affected by human errors, affecting the repeatability and reliability of the measurement, resulting in low measurement efficiency and being not conducive to batch detection and quality control of the production process.

[0005] Therefore, how to design a device for measuring the diameter of a wheel damping groove that can avoid measurement interference, improve measurement accuracy, and be applicable to different vehicle models has become a technical problem that needs to be solved urgently by those skilled in the art.

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] The present invention provides a device for measuring the diameter of a wheel damping groove, aiming to solve the problem that the existing device for measuring the diameter of a wheel damping groove is interfered by the wheel hub during the measurement process, thereby resulting in the inability to measure the diameter of the wheel damping groove or a large error in the measurement result.

[0008] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] A device for measuring the diameter of a wheel damping groove, comprising a measuring ruler, the measuring ruler including: a main structure; a positioning unit adjustably arranged at one end of the main structure for positioning the measuring position of the wheel damping groove; a measuring unit adjustably arranged at the end of the main structure opposite to the positioning unit, and the working end of the measuring unit is movable for measuring the diameter of the wheel damping groove.

[0010] Further, the main structure includes a main beam, and the positioning unit and the measuring unit are arranged on the lower side of the main beam to form a portal structure; the positioning unit and the measuring unit are movable in a direction perpendicular to the main beam to adapt to different wheel sizes; the working end of the measuring unit can be translated in a direction parallel to the main beam.

[0011] Further, the measuring unit includes: a first connecting member connected to the main beam, on which a first guide rail perpendicular to the main beam is provided, and a first vernier plate is arranged on the first guide rail; a first scale rod movably inserted into the first guide rail; a measuring module connected to the end of the first scale rod and extending in a direction perpendicular to the first scale rod, and the working end of the measuring unit is arranged on the measuring module.

[0012] Further, the working end of the measuring unit is a movable measuring head, the movable measuring head is a ball head structure adapted to the shape of the wheel damping groove, and is movably arranged on the measuring module; a display device configured to display the measured value of the movable measuring head is further arranged on the measuring module.

[0013] Further, the positioning unit includes: a second connecting member connected to the main beam, on which a second guide rail perpendicular to the main beam is provided, and a second vernier plate parallel to the extending direction of the second guide rail is arranged on the second guide rail, and the scale value of the second vernier plate corresponds to the scale value of the first vernier plate; a second scale rod movably inserted into the second guide rail; a fixed measuring head, which is the working end of the positioning unit, is arranged on the second scale rod and is perpendicular to the second scale rod.

[0014] Further, it further includes a calibration device, the calibration device including a bearing structure and at least two calibration members arranged at both ends of the bearing structure for calibrating the measuring ruler; the at least two calibration members extend in a direction perpendicular to the length direction of the bearing structure, and an adjustable measuring head is arranged on at least one calibration member, and the adjustable measuring head is perpendicular to the calibration member.

[0015] Further, the bearing structure is rod-shaped, and the calibration member at at least one end thereof can move in the length direction of the bearing structure.

[0016] Another object of the present invention is to provide a method for using a device for measuring the diameter of a wheel damping groove, including the following steps: first calibrate the measuring ruler, and then use the calibrated measuring ruler to measure the diameter of the wheel damping groove.

[0017] Further, "calibrating the measuring ruler" includes: S1: Placing the measuring ruler above the calibration device, ensuring that the working end of the positioning unit contacts the inner side of the calibration part of the calibration device;

[0018] S2: Adjusting the working end of the measuring unit to contact the adjustable probe of the calibration device, and adjusting the value of the display device according to the actual size of the calibration device;

[0019] "Measuring the diameter of the wheel damping groove with the calibrated measuring ruler" includes:

[0020] S3: Vertically placing the calibrated measuring ruler above the wheel;

[0021] S4: Adjusting the height of the working end of the positioning unit to ensure that the working end of the positioning unit is in close contact with the damping groove;

[0022] S5: Moving the working end of the measuring unit to contact the damping groove, and the display device displays the measurement result.

[0023] Further, S4 also includes: Placing the working ends of both the positioning unit and the measuring unit into the damping groove, moving the working end of the measuring unit to be in full contact with the inner circular wall of the damping groove, and judging the contact situation.

[0024] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0025] 1. By respectively arranging an adjustable positioning unit and a measuring unit on the main body structure, and adjusting the positions of the positioning unit and the measuring unit, the measuring device can be adapted to wheels of different sizes during measurement, avoiding interference with the wheel hub, improving the measurement accuracy of the measuring device, reducing measurement errors, and at the same time ensuring the stability of the measuring device and the convenience of operation. It is applicable to the manufacturing, overhaul and maintenance processes of railway train wheels, providing an effective means for accurately measuring the diameter of the wheel damping groove.

[0026] 2. By arranging a first scale rod that can move up and down and a measuring module connected to the first scale rod, and a movable moving probe is provided on the measuring module; combined with arranging a second scale rod that can move up and down, the up, down, left and right four-direction adjustment of the measuring ruler is realized, with high versatility, and the measurement of the diameter of the wheel damping groove of different vehicle models, different depths and different diameters can be achieved.

[0027] 3. By setting the moving probe as an inductive probe and an electrical connection between the display device and the inductive probe, the inductive probe can generate a change in the electrical signal according to the change in the distance or displacement between the moving probe and the measured object, convert the electrical signal into a digital signal through the signal processing circuit, and display the measurement result on the display screen of the display device, enabling the operator to conveniently read the diameter data of the wheel damping groove.

[0028] 4. In the present invention, by setting the moving probe to be a spherical head structure, which is highly adapted to the shape of the wheel damping groove, the moving probe can better contact the surface of the wheel damping groove, ensuring that the diameter of the damping groove can be accurately read during the measurement process, effectively reducing the measurement error caused by poor contact, and improving the measurement accuracy.

[0029] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0030] The accompanying drawings, as part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0031] Figure 1 is a schematic diagram of the overall structure of the wheel damping groove diameter measuring device in an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the structure of the measuring unit in an embodiment of the present invention;

[0033] Figure 3 is a schematic diagram of the structure of the measuring unit from another perspective in an embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of the structure of the calibration unit in an embodiment of the present invention.

[0035] Description of the main elements in the figure:

[0036] 1. Main body structure; 2. Measuring unit; 21. First connecting piece; 201. First guide rail; 211. First scale rod; 22. Measuring module; 221. Moving probe; 23. First vernier plate; 24. Display device; 3. Positioning unit; 31. Second connecting piece; 301. Second guide rail; 302. Second scale rod; 32. Fixed probe; 33. Second vernier plate; 4. Calibration device; 41. Carrying structure; 42. Calibration piece; 421. Adjustable probe.

[0037] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Specific Embodiments

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0040] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] During the manufacturing and maintenance of rail trains, the measurement of the diameter of the wheel damping groove is crucial for ensuring the safe operation of the vehicle. The diameter of the damping groove must meet strict manufacturing standards to ensure the stability and durability of the vehicle. However, existing measurement methods have many limitations, especially in terms of measurement accuracy and efficiency, and cannot meet the growing detection requirements. Traditional measurement tools, such as vernier calipers and general diameter measuring instruments, often interfere with the wheel hub, resulting in limitations in the measurement process.

[0042] To overcome this problem, the prior art usually uses a vernier caliper in combination with a cylindrical spacer for indirect measurement. However, due to the differences in the wheel structure and wheel type, it is difficult to accurately adapt to the damping grooves of different vehicle models, making the measurement tool unable to accurately adapt to the shape and size of the damping groove, resulting in inaccurate measurement results. In addition, the indirect measurement process is cumbersome, prone to introducing human errors, reducing the reliability and repeatability of the measurement, and thus affecting mass production and quality control.

[0043] As Figures 1 to 4 shown, in the embodiments of the present invention, a device for measuring the diameter of a wheel damping groove is introduced to solve the above technical problems.

[0044] As Figures 1 to 4As shown in the figure, in this embodiment, a device for measuring the diameter of a wheel damping groove includes a measuring ruler and a calibration device 4. The measuring ruler is used to measure the wheel, and the calibration device 4 calibrates the measuring ruler. The main function of the measuring ruler is to accurately measure the diameter of the wheel damping groove by contacting the wheel damping groove; the calibration device 4 is used to calibrate the measuring ruler, which can ensure that the measurement accuracy of the diameter of the wheel damping groove by the measuring ruler meets the standard requirements and avoid measurement errors caused by equipment deviation or environmental changes.

[0045] As Figures 1 to 3 shown in the figure, in this embodiment, the measuring ruler includes a main structure 1, and a positioning unit 3 and a measuring unit 2 oppositely arranged at both ends of the main structure 1. Both the positioning unit 3 and the measuring unit 2 are adjustable relative to the main structure 1 to ensure that the device for measuring the diameter of the wheel damping groove can adapt to the measurement requirements of different wheel sizes. The positioning unit 3 is used to ensure the accurate relative position between the main structure 1 of the measuring ruler and the wheel damping groove, and to ensure that the position of the main structure 1 remains unchanged during the measurement process, so as to ensure the stability of the main structure 1 when the working end of the measuring unit 2 measures the diameter of the wheel damping groove and avoid measurement errors of the working end of the measuring unit 2 caused by position deviation.

[0046] Specifically, in this embodiment, the main structure 1 includes a main beam, and the positioning unit 3 and the measuring unit 2 are arranged on the lower side of the main beam to form a portal structure. Both the positioning unit 3 and the measuring unit 2 are movable in a direction perpendicular to the main beam to adapt to the measurement requirements of different wheel sizes. By adjusting the positions of the positioning unit 3 and the measuring unit 2, the relative position between the measuring device and the wheel can be accurately adjusted to ensure the stability and accuracy of the measurement under different wheel sizes. After the working end of the positioning unit 3 contacts the wheel damping groove, the working end of the measuring unit 2 translates in a direction parallel to the main beam to ensure that the working end of the measuring unit 2 can accurately contact the wheel damping groove and perform accurate measurement.

[0047] More specifically, in this embodiment, when measuring, the wheel is usually placed flat, and the measuring unit 2 and the positioning unit 3 of the measuring ruler are arranged directly below the main structure 1. At this time, the working ends of both the positioning unit 3 and the measuring unit 2 face outward, and the position of the working end of the positioning unit 3 in the direction parallel to the main beam is fixed relative to the main beam, and at the same time, the position of the working end of the positioning unit 3 does not exceed the end of the main beam on this side. To ensure the stability of the measurement, preferably, the working end of the positioning unit 3 is located inside relative to the end of the main beam.

[0048] As Figures 2 to 3As shown in the figure, in this embodiment, the measuring unit 2 includes a first connecting member 21 connected to the main body beam, a first scale rod 211 movably connected to the first connecting member 21, and a measuring module 22 connected to the end of the first scale rod 211 and extending in a direction perpendicular to the first scale rod 211. The working end of the measuring unit 2 is provided on the measuring module 22.

[0049] Specifically, in this embodiment, the first connecting member 21 is provided with a first guide rail 201 perpendicular to the main body beam and a first vernier plate 23 arranged on the first guide rail 201. The first scale rod 211 is movably connected to the first connecting member 21 by being inserted into the first guide rail 201. The first vernier plate 23 cooperates with the scale on the first scale rod 211, enabling precise adjustment of the position dimension of the first scale rod 211 to meet the measurement requirements for different wheel sizes. Through the cooperation of the first vernier plate 23 with the scale on the first scale rod 211, fine adjustment can be achieved to ensure the precise positioning of the first scale rod 211, making the measurement results more accurate.

[0050] More specifically, in this embodiment, the first connecting member 21 has a sheet-like structure, its extending direction is parallel to the extending direction of the first guide rail 201, and its bottom serves as the first positioning surface. When measuring the diameter of the wheel damping groove, the first positioning surface contacts the wheel rim surface, ensuring the stability of the measuring device during the measurement process and avoiding measurement errors caused by position deviation.

[0051] Specifically, in this embodiment, the first guide rail 201 is provided with screw holes and screws. The first scale rod 211 can freely translate along the first guide rail 201 and can be adjusted according to different wheel specifications. When the first scale rod 211 moves to a position corresponding to the specification of the wheel damping groove to be measured, the relative position between the first guide rail 201 and the first scale rod 211 is locked by inserting the screw into the screw hole, thereby achieving precise position fixation of the first scale rod 211. Specifically, after the first scale rod 211 moves to a suitable position along the direction of the first guide rail 201, it is fastened with screws, so that the first scale rod 211 is stably fixed in a predetermined position in a direction perpendicular to the main body beam. At the same time, combined with the abutment of the first positioning surface and the wheel rim surface, it can be ensured that there will be no displacement during the measurement process, guaranteeing the measurement accuracy.

[0052] In this embodiment, the working end of the measuring unit 2 is a movable probe 221. The movable probe 221 is movably arranged on the measuring module 22, enabling the movable probe 221 to be adjusted as needed during the measurement process to meet the measurement requirements for different diameters of wheel damping grooves. At the same time, a display device 24 for displaying the measurement value of the movable probe 221 is also provided on the measuring module 22. The display device 24 can display the measurement results of the movable probe 221 in real time, facilitating the operator to read the measurement data.

[0053] Specifically, in this embodiment, the moving probe 221 has a ball head structure, and the shape of the ball head structure is highly adapted to the shape of the wheel damping groove, so that the moving probe 221 can better contact the surface of the wheel damping groove, ensuring that the diameter of the damping groove can be accurately read during the measurement process, effectively reducing the measurement error caused by poor contact, and improving the measurement accuracy.

[0054] More specifically, in this embodiment, the moving probe 221 is an inductive probe, and there is an electrical connection between the display device 24 and the inductive probe. The inductive probe can generate a change in the electrical signal according to the change in the distance or displacement between the moving probe 221 and the object to be measured. The electrical signal is converted into a digital signal through a signal processing circuit and displayed on the display screen of the display device 24, so that the operator can conveniently read the diameter data of the wheel damping groove.

[0055] As Figures 2 to 3 shown, in this embodiment, the positioning unit 3 includes a second connecting member 31, a second scale bar 302, and a fixed probe 32. The second connecting member 31 is connected to the main beam, and a second guide rail 301 perpendicular to the main beam is provided on the second connecting member 31. The fixed probe 32 is arranged on the second scale bar 302 and is perpendicular to the second scale bar 302. By adjusting the positions of the second scale bar 302 and the first scale bar 211 respectively, the fixed probe 32 and the moving probe 221 are located at the same height for measurement.

[0056] Specifically, in this embodiment, a second vernier plate 33 parallel to the extending direction of the second guide rail 301 is provided on the second guide rail 301. The scale value of the second vernier plate 33 corresponds to the scale value on the first vernier plate 23, ensuring that the measuring device can accurately adjust its position. At the same time, the scale value of the second vernier plate 33 also corresponds and cooperates with the scale on the second scale bar 302.

[0057] The operator can adjust the position of the second scale bar 302 according to the scale of the second vernier plate 33 and, in combination with the adjustment of the first scale bar 211, make the measuring scale adapt to the measurement requirements of different wheel specifications.

[0058] Specifically, in this embodiment, the second scale bar 302 is movably inserted into the second guide rail 301 to achieve the up and down movement adjustment of the second scale bar 302. After the second scale bar 302 is adjusted to the correct position according to the specification size of the wheel to be measured, it is locked. The specific locking method refers to the locking method of the first scale bar 211, ensuring that the positioning unit 3 is always in the correct measurement position during the measurement. The fixed probe 32 on the second guide rail 301 serves as a stable reference point during the measurement process, ensuring that it makes full contact with the wheel damping groove during the measurement and accurately reads the diameter of the damping groove.

[0059] More specifically, in this embodiment, the second connecting member 31 has a portion that protrudes and extends toward the end of the main body structure 1 relative to the second guide rail 301, and the bottom of the protruding and extending portion of the second connecting member 31 serves as the second positioning surface. During measurement, the second positioning surface abuts against the wheel rim surface. By cooperating with the first positioning surface, it is ensured that the entire measuring ruler is stably placed on the wheel, avoiding errors caused by instability during the measurement process and ensuring the accuracy of the measurement results.

[0060] Even more specifically, in this embodiment, the second connecting member 31 and the second guide rail 301 are integrally formed.

[0061] In the above embodiment, the measuring ruler adopts a portal structure, which can effectively avoid interference between the ruler body and the wheel hub during measurement; at the same time, the first ruler rod 211 and the second ruler rod 302 can be adjusted up and down and locked in a vernier form according to the depth of the damping groove, so as to measure the damping grooves of wheels of different models and different depths. In addition, the movable probe 221 and the fixed probe 32 adopt a ball head structure, so that the movable probe 221 and the fixed probe 32 effectively fit the structure of the damping groove during measurement, enabling rapid positioning measurement and improving the measurement efficiency. Further, the ball head structure is in a semi-spherical shape.

[0062] In this embodiment, the measuring ruler takes the wheel rim surface as the measurement reference. Before measurement, according to the distance between the measured wheel damping groove and the rim surface, the positions of the first ruler rod 211 and the second ruler rod 302 are adjusted by using the first vernier piece 23 and the second vernier piece 33 at both ends of the measuring ruler to ensure that the distance between the measuring ruler and the wheel damping groove is the same as that of the rim surface. After adjusting to an appropriate position, the first ruler rod 211 and the second ruler rod 302 are locked with fastening nuts to ensure that the positions of the first ruler rod 211 and the second ruler rod 302 are fixed, avoiding displacement during the measurement process, and thus ensuring the measurement accuracy.

[0063] As Figure 1 and Figure 4 shown, in this embodiment, the calibration device 4 includes a carrying structure 41 and at least two calibration members 42 provided at both ends of the carrying structure 41, which are used to calibrate the measuring ruler, that is, to accurately calibrate the positions of the working ends of the positioning unit 3 and / or the working ends of the measuring unit 2 of the measuring ruler, so as to ensure that the relative positions of the components during the measurement process always remain correct, thereby improving the accuracy and reliability of the measurement.

[0064] Specifically, in this embodiment, taking the example that one calibration member 42 is provided at each end of the bearing structure 41, the bearing structure 41 is rod-shaped. The calibration member 42 is a square block structure and extends along a direction perpendicular to the length direction of the bearing structure 41. An adjustable probe 421 is provided on the calibration block at at least one end of the bearing structure 41. The adjustable probe 421 is the positioning reference during the calibration of the measuring scale. Further, the extending direction of the adjustable probe 421 is perpendicular to the calibration member 42 to ensure that the measuring scale can be accurately calibrated.

[0065] More specifically, in this embodiment, according to the measured diameter size of the wheel damping groove, the adjustable probe 421 of the calibration device 4 can be adjusted to obtain a calibration size that conforms to the diameter of the damping groove.

[0066] In some specific embodiments, the adjustable probe 421 is an inductive probe.

[0067] In some possible embodiments, the calibration member 42 at at least one end of the bearing structure 41 can be translated along the length direction of the bearing structure 41, and the translation direction is parallel to the orientation of the adjustable probe 421, which can increase the flexibility of calibration, enabling the operator to flexibly adjust the position of the calibration member 42 according to actual measurement requirements, thereby precisely adjusting the calibration value and ensuring the accuracy of the measuring device. That is, when calibration is required, the operator can adjust the adjustable probe 421 on the calibration member 42 according to the measurement requirements, change the calibration value of the measuring device, and further adjust the accuracy of the calibration device 4.

[0068] Specifically, in this embodiment, the calibration member 42 is provided with slots, and both ends of the bearing structure 41 are respectively inserted into the slots. This not only enables a stable connection between the bearing structure 41 and the calibration member 42, but also ensures that when the position of the calibration member 42 needs to be adjusted, it can be conveniently inserted and removed and adjusted. The setting of the slots enables the calibration member 42 to be accurately fixed at both ends of the bearing structure 41, ensuring the stability and accuracy during the calibration process.

[0069] In the above embodiment, the measuring scale is calibrated by adjusting the adjustable probe 421 on the calibration device 4. Specifically, the measuring scale is placed above the calibration device 4, so that the first positioning surface and the second positioning surface on the left and right of the measuring scale are abutted against the top surface of the calibration member 42 of the calibration device 4, and the fixed probe 32 of the measuring scale touches the inner side surface of the calibration member 42 at one end of the calibration device 4. Then, the working end of the measuring unit 2 of the measuring scale is adjusted to touch the adjustable probe surface of the calibration device 4, and the value of the display device 24 on the measuring module 22 is adjusted according to the actual size of the calibration device 4 to complete the calibration of the measuring scale.

[0070] After that, place the calibrated measuring ruler vertically above the wheel. The first positioning surface and the second positioning surface are in contact with the wheel rim surface. Place the working end of the measuring unit 2 of the measuring ruler into the wheel damping groove, making the measuring ruler perpendicular to the diameter direction of the damping groove.

[0071] Furthermore, the fixed probe 32 extends deep into the wheel damping groove and contacts the groove surface of the damping groove. By adjusting the position of the second ruler rod 302, make it in close contact with the damping groove. Then, adjust the movable probe 221 on one side of the measuring unit 2 to contact the damping groove. Since the movable probe 221 is an inductive probe, the sensor will generate a change in the electrical signal according to the change in the distance or displacement between the movable probe 221 and the damping groove. The electrical signal is converted into a digital signal through the signal processing circuit and displayed on the display screen of the display device 24. Read the numerical value of the digital display device of the measuring part to complete the measurement of the diameter size of the damping groove.

[0072] Even further, place both the fixed probe 32 and the movable probe 221 of the measuring ruler into the inner circle of the damping groove. Gently adjust the movable probe 221 horizontally to make it in complete contact with the inner circle wall of the damping groove in the diameter direction. Determine whether the contact is good through the resistance of the wall surface between the movable probe 221 and the inner circle wall of the damping groove. To ensure accuracy, perform multiple measurements at the cross-vertical positions in the damping groove during measurement. During operation, operate the movable probe 221 and the measuring ruler from the smaller inner circle diameter to the larger inner circle diameter. When the movable probe 221 passes through the largest inner circle diameter, it will automatically detect and record the maximum value of the inner circle and display it on the display of the measuring ruler (the inductive probe has a maximum value recording function. When the largest inner circle diameter is detected, the value will be recorded and fixed, and the display will only change when a larger value is detected). Repeat the operation multiple times to determine whether the detected maximum diameter value is accurate. At the same time, repeat the above operation at the cross-vertical positions in the damping groove. Finally, comprehensively analyze the measured maximum values to determine the inner circle diameter of the damping groove, which can avoid inaccurate single-point measurement caused by factors such as machining errors of the damping groove.

[0073] In this embodiment, during measurement, the ruler body can effectively avoid interference with the wheel hub diameter. The measuring unit 2 is provided with a first ruler rod 211 that can move up and down, and a measuring module 22 connected to the first ruler rod 211. The measuring module 22 is provided with a movable probe 221. Combined with the second ruler rod 302 that can move up and down, the four-direction adjustment of the measuring ruler in the up, down, left, and right directions is realized, with high versatility, and the measurement of the damping groove diameters of different vehicle models, different depths, and different diameters can be achieved.

[0074] In this embodiment, the wheel damping groove diameter measuring ruler adopts a stainless steel structure, which has excellent dimensional stability. Since the thermal expansion coefficient of stainless steel material is relatively low, the size of the measuring ruler changes little in different temperature environments, which is crucial for ensuring the measurement accuracy. In a working environment with large temperature changes, the measuring device can maintain high stability, reduce the dimensional error caused by temperature, and thus ensure the accuracy and reliability of the measurement results. Further, the adoption of the stainless steel structure enables the measuring ruler to maintain a constant size and shape at different temperatures during long-term use, avoiding the expansion or contraction phenomena that may occur in traditional materials in high or low temperature environments, enabling the measuring device to better cope with temperature fluctuations, provide accurate measurement data, further improving the accuracy and reliability of the wheel damping groove diameter measurement, and providing stable technical support for the design, manufacture and repair of wheels.

[0075] The above are only relatively preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the technical content prompted above within the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A wheel damping groove diameter measuring device, characterized in that, including a measuring ruler, The measuring ruler includes: a main body structure (1); a positioning unit (3), adjustably arranged at one end of the main body structure (1) for positioning the measuring position of the wheel damping groove; a measuring unit (2), adjustably arranged at the opposite end of the main body structure (1) to the positioning unit (3), and the working end of the measuring unit (2) is movable for measuring the diameter of the wheel damping groove.

2. The wheel damping groove diameter measuring device according to claim 1, characterized in that the main body structure (1) includes a main body beam, and the positioning unit (3) and the measuring unit (2) are arranged on the lower side of the main body beam and form a portal structure with the main body beam; the positioning unit (3) and the measuring unit (2) are movable in a direction perpendicular to the main body beam to adapt to different wheel sizes; the working end of the measuring unit (2) can be translated in a direction parallel to the main body beam.

3. The wheel damping groove diameter measuring device according to claim 2, characterized in that the measuring unit (2) includes: a first connecting member (21), connected to the main body beam, provided with a first guide rail (201) perpendicular to the main body beam, and a first vernier plate (23) is arranged on the first guide rail (201); a first scale rod (211), movably inserted into the first guide rail (201); a measuring module (22), connected to the end of the first scale rod (211) and extending in a direction perpendicular to the first scale rod (211), and the working end of the measuring unit (2) is arranged on the measuring module (22).

4. The wheel damping groove diameter measuring device according to claim 3, characterized in that the working end of the measuring unit (2) is a movable probe (221), the movable probe (221) is a ball head structure adapted to the shape of the wheel damping groove, and is movably arranged on the measuring module (22); a display device (24) configured to display the measured value of the movable probe (221) is further arranged on the measuring module (22).

5. The wheel damping groove diameter measuring device according to claim 4, characterized in that the positioning unit (3) includes: a second connecting member (31), connected to the main body beam, provided with a second guide rail (301) perpendicular to the main body beam, and a second vernier plate (33) parallel to its extending direction is arranged on the second guide rail (301), and the scale value of the second vernier plate (33) corresponds to the scale value of the first vernier plate (23); a second scale rod (302), movably inserted into the second guide rail (301); a fixed probe (32), which is the working end of the positioning unit (3), is arranged on the second scale rod (302) and is perpendicular to the second scale rod (302).

6. The wheel damping groove diameter measuring device according to any one of claims 1 to 5, characterized in that it further includes a calibration device (4), the calibration device (4) includes a bearing structure (41), and at least two calibration members (42) arranged at both ends of the bearing structure (41) for calibrating the measuring ruler; At least two calibration members (42) extend in a direction perpendicular to the length direction of the bearing structure (41), and an adjustable probe (421) is provided on at least one calibration member (42), and the adjustable probe (421) is perpendicular to the calibration member (42).

7. The wheel damping groove diameter measuring device according to claim 6, wherein The bearing structure (41) is rod-shaped, and the calibration members (42) at at least one end thereof are movable along the length direction of the bearing structure (41).

8. A method for using the wheel damping groove diameter measuring device according to any one of claims 1 to 7, characterized in that, Comprising the following steps: First, calibrate the measuring scale, and then use the calibrated measuring scale to measure the diameter of the wheel damping groove.

9. The method for using the wheel damping groove diameter measuring device according to claim 8, wherein "Calibrating the measuring scale" includes: S1: Place the measuring scale above the calibration device (4), and ensure that the working end of the positioning unit (3) contacts the inner side surface of the calibration member (42) of the calibration device (4); S2: Adjust the working end of the measuring unit (2) to contact the adjustable probe (421) of the calibration device (4), and adjust the value of the display device (24) according to the actual size of the calibration device (4); "Measuring the diameter of the wheel damping groove with the calibrated measuring scale" includes: S3: Vertically place the calibrated measuring scale above the wheel; S4: Adjust the height of the working end of the positioning unit (3) to ensure that the working end of the positioning unit (3) is in close contact with the damping groove; S5: Move the working end of the measuring unit (2) to contact the damping groove, and the display device (24) displays the measurement result.

10. The method of using the wheel damping groove diameter measuring device according to claim 9, characterized in that, S4 further includes: Put the working ends of both the positioning unit (3) and the measuring unit (2) into the damping groove, move the working end of the measuring unit (2) to be in full contact with the inner circular wall of the damping groove, and judge the contact situation.

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