Flange type split high-rotating-speed dynamic torque sensor based on electromagnetic induction

By employing a flange-type split design and an electromagnetic induction principle torque sensor, the problems of complex installation and poor adaptability have been solved, enabling rapid connection, reducing maintenance costs, and improving measurement accuracy. It is suitable for dynamic torque monitoring in high-speed and complex environments.

CN121577211APending Publication Date: 2026-02-27ZHEJIANG SOUTH-OCEAN SENSOR MFG CO LTD
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Patent Information

Application Number
CN202511963528.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Existing torque sensors are complex to install and difficult to disassemble when connected to the equipment under test. Furthermore, the flange design of split sensors lacks standardization, making it difficult to quickly adapt to equipment of different specifications and resulting in poor versatility.

Method used

It adopts a flange-type split design, combining the torque evaluation unit and the torque measurement flange into separate structures. It uses the principle of electromagnetic induction and non-contact transmission technology, combined with temperature compensation and anti-electromagnetic interference design, and achieves quick connection and adaptation to different specifications of equipment through the clamping mechanism.

Benefits of technology

It enables rapid docking and disconnection between the sensor and the device under test, reduces maintenance costs, extends service life, and improves measurement accuracy and stability. It is suitable for dynamic torque monitoring under high speed and complex working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of torque measurement, in particular to a flange-type split high-rotating-speed dynamic torque sensor based on electromagnetic induction, and solves the problems that when the torque sensor is connected with tested equipment, time and labor are often wasted due to the problems of complex installation, difficult disassembly and the like. In order to solve the problems that in the prior art, a flange plate of an existing split type sensor is lack of standardization in design, difficult to quickly adapt to equipment of different specifications and poor in universality, the split type sensor comprises a torque evaluation unit, a torque evaluation unit surface coating film is arranged on the surface of the torque evaluation unit, and a torque measurement flange plate is arranged on the outer side of the torque evaluation unit. According to the invention, by adopting a flange plate type split design, the problems of complex installation and difficult disassembly of an existing integral torque sensor are solved, rapid butt joint and separation of the sensor and tested equipment are realized, the installation process is simplified, the maintenance cost is reduced, and the maintainability and practicability of the equipment are improved.
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Description

Technical Field

[0001] This application relates to the field of torque measurement technology, specifically to a flange-type split high-speed dynamic torque sensor based on electromagnetic induction. Background Technology

[0002] With the rapid development of industrial automation and intelligence, torque, as a key parameter of power transmission systems, is of great significance for accurate measurement in equipment control, performance optimization, and fault diagnosis. Especially in fields such as agricultural machinery, automobile manufacturing, and motor testing, real-time monitoring of dynamic torque has become an important means of improving product quality and production efficiency.

[0003] Existing torque sensors often cause time and effort to connect to the equipment under test due to complex installation and difficult disassembly. In addition, the flange design of existing split sensors lacks standardization, making it difficult to quickly adapt to equipment of different specifications and resulting in poor versatility. Therefore, they do not meet the current requirements. To address this, we propose a flange-type split high-speed dynamic torque sensor based on electromagnetic induction. Summary of the Invention

[0004] This application provides a flange-type split high-speed dynamic torque sensor based on electromagnetic induction to solve the problems mentioned in the background art, such as the time-consuming and labor-intensive nature of torque sensors when connected to the tested equipment due to complex installation and difficult disassembly, and the lack of standardization in the flange design of existing split sensors, making it difficult to quickly adapt to equipment of different specifications and resulting in poor versatility.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flange-type split high-speed dynamic torque sensor based on electromagnetic induction, comprising a torque evaluation unit, the surface of which is covered with a torque evaluation unit surface coating, and a torque measuring flange on the outer side of which is composed of an upper elastic body flange, an elastic body, and a lower elastic body flange from top to bottom. The elastic body is a hollow cylindrical shape with an upper elastic body flange on its upper part and a lower elastic body flange on its lower part. A circuit board mounting cavity is provided inside the elastic body. The upper elastic body flange, the elastic body, the circuit board mounting cavity, and the lower elastic body flange together constitute a sensor cavity. A clamping mechanism is provided on the outer side of the elastic body, and a Hall sensor is provided below the surface coating of the torque evaluation unit.

[0006] Preferably, the surface of the upper flange of the elastomer is provided with eight upper flange mounting through holes, the middle part of the upper flange of the elastomer is provided with an upper flange mounting step, the upper flange cover is movably installed inside the upper flange mounting step, the outer surface of the upper flange of the elastomer is provided with an upper flange outer end face U-shaped groove, the resonant coil is movably installed inside the upper flange outer end face U-shaped groove, the resonant coil is provided with a resonant coil protective layer outside the resonant coil, and the resonant coil protective layer is movably inserted into the interior of the upper flange outer end face U-shaped groove.

[0007] Preferably, the surface of the lower flange of the elastomer is provided with eight lower flange mounting through holes coaxial with the mounting through holes of the upper flange, the middle part of the lower flange of the elastomer is provided with a lower flange mounting step, the lower flange cover is movably installed inside the lower flange mounting step, and the outer end face speed measuring teeth of the lower flange are fixedly installed on the outer surface of the lower flange of the elastomer.

[0008] Preferably, the clamping mechanism includes eight rotating shafts, all of which are rotatably mounted on the outer side of the elastic body. Each rotating shaft has an upper semi-circular arc-shaped clamping plate and a lower semi-circular arc-shaped clamping plate rotatably mounted on its outer surface. The outer surface of the upper semi-circular arc-shaped clamping plate is hinged to an upper connecting rod, and the outer surface of the lower semi-circular arc-shaped clamping plate is hinged to a lower connecting rod. Every two adjacent lower connecting rods are hinged to each other, and every two adjacent upper connecting rods are hinged to each other.

[0009] Preferably, the clamping mechanism further includes eight fixing rods, all of which are fixedly installed on the outer surface of the elastic body. Each fixing rod has a telescopic rod slidably installed at its outer end, and each telescopic rod has a connecting buckle fixedly installed at its outer end. Each connecting buckle is hingedly connected to the upper connecting rod and the lower connecting rod.

[0010] Preferably, each of the fixed rods has a spring groove inside, and a compression spring is movably installed between the telescopic rod and the inside of the spring groove. One end of the compression spring is connected to the inner wall of the spring groove, and the other end of the compression spring is connected to the telescopic rod.

[0011] Preferably, eight baffles are fixedly installed between the upper flange and the lower flange of the elastomer, and the outer surfaces of the upper connecting rod and the lower connecting rod are in contact with the surfaces of the baffles.

[0012] Preferably, the top surface of the upper flange of the elastomer is provided with an outer inner ring stress absorbing groove near the periphery of the upper flange mounting step, the bottom surface of the upper flange of the elastomer is provided with an inner outer ring metal demagnetizing groove near the outer side, the bottom surface of the upper flange of the elastomer is provided with an inner inner ring stress absorbing groove near the inner side, and a threaded hole is provided between every two upper flange mounting through holes on the top surface of the upper flange of the elastomer.

[0013] Preferably, the bottom surface of the lower flange of the elastomer is provided with a lower flange mounting step near the periphery of the lower flange mounting step, and the top surface of the lower flange of the elastomer is provided with a lower flange outer stress absorption groove near the inner side.

[0014] Preferably, the top and bottom surfaces of the upper and lower semi-circular arc-shaped clamping plates are both provided with arc surfaces.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention solves the problems of complex installation and difficult disassembly of existing integral torque sensors by adopting a flange-type split design, realizing the rapid docking and separation of the sensor and the measured equipment, simplifying the installation process, reducing maintenance costs, and improving the maintainability and practicality of the equipment.

[0017] 2. This invention uses a split structure design of torque evaluation unit and torque measurement flange, and adopts non-contact transmission technology such as optics to avoid wear and signal interference caused by mechanical contact, thereby extending the service life of the sensor. It solves the problems of easy wear and short service life of traditional contact torque sensors, ensuring long-term stable operation. It is particularly suitable for dynamic torque monitoring scenarios with high speed and long-term operation.

[0018] 3. This invention utilizes the split structure design of the torque evaluation unit and the torque measurement flange to reduce vibration transmission. Combined with temperature compensation technology and anti-electromagnetic interference design, it improves the measurement accuracy and stability of the sensor under complex working conditions. This solves the problems of weak anti-interference ability and measurement accuracy of existing torque sensors, which are easily affected by the environment. It ensures that torque data can still be accurately measured in environments with high dust, strong vibration and severe electromagnetic interference.

[0019] 4. This invention, through the cooperation of the upper and lower semi-circular arc-shaped clamping plates, allows the device to be used by directly inserting the connecting parts of the equipment being tested into the mounting through hole of the upper flange, thereby bringing them into contact with the surfaces of the upper and lower semi-circular arc-shaped clamping plates. At this time, the upper and lower semi-circular arc-shaped clamping plates will be pressured and open outwards, simultaneously causing the upper and lower connecting rods to bend inwards along the hinge position of the connecting buckle, forming a V-shape. Subsequently, the telescopic rod inside the fixing rod will be ejected by the elastic force of the compression spring, causing the upper... The connecting rod and lower connecting rod move towards the blocking plate, which in turn causes the upper connecting rod and lower connecting rod to rotate the upper and lower semi-circular arc-shaped clamping plates to the axis of the mounting through hole of the upper flange. This allows the upper and lower semi-circular arc-shaped clamping plates to clamp and position the connecting parts of the equipment under test, preventing misalignment caused by differences in the specifications of the connecting parts of the equipment under test and the mounting through hole of the upper flange. This enables quick connection of the equipment under test and allows the device to be adapted to different specifications of equipment under test by adjusting the bending angle of the upper and lower connecting rods. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the torque measuring flange portion of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the torque measuring flange portion of the present invention;

[0022] Figure 3 This is a top view of the entire invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of the torque measuring flange portion of the present invention;

[0024] Figure 5 This is a top cross-sectional view of the torque measuring flange portion of the present invention;

[0025] Figure 6 For the present invention Figure 5 A partial structural diagram of part A in the middle.

[0026] 1. Torque assessment unit; 2. Torque measurement flange; 3. Torque assessment unit surface coating; 4. Elastomer upper flange; 5. Upper flange cover; 6. Upper flange mounting step; 7. Upper flange outer inner ring stress absorption groove; 8. Upper flange mounting through hole; 9. Baffle plate; 10. Resonant coil; 11. Resonant coil protective layer; 12. U-shaped groove on the outer end face of the upper flange; 13. Upper flange inner outer ring metal demagnetization groove; 14. Upper flange inner inner ring stress absorption groove; 15. Elastomer; 16. Lower flange outer end 17. Surface speed measuring gear; 18. Lower flange mounting through hole; 19. Stress absorption groove inside the lower flange; 20. Stress absorption groove outside the lower flange; 21. Lower flange mounting step; 22. Lower flange cover; 23. Circuit board mounting cavity; 24. Elastomer lower flange; 25. Fixing rod; 26. Telescopic rod; 27. Connecting buckle; 28. Rotating shaft; 29. ​​Upper connecting rod; 30. Lower connecting rod; 31. Upper semi-circular arc-shaped clamping plate; 32. Lower semi-circular arc-shaped clamping plate; 33. Spring groove; 34. Compression spring; 35. Threaded hole.

[0027] The accompanying drawings, which form part of this application, are used to provide further explanation of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. Detailed Implementation

[0028] The technical solutions in this application are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Please see Figures 1 to 6 This invention provides an embodiment of a flange-type split high-speed dynamic torque sensor based on electromagnetic induction, comprising a torque evaluation unit 1, a torque evaluation unit surface coating 3 on the surface of the torque evaluation unit 1, a torque measuring flange 2 on the outer side of the torque evaluation unit 1, the torque measuring flange 2 being composed of an upper elastic body flange 4, an elastic body 15, and a lower elastic body flange 23 from top to bottom, the elastic body 15 being a hollow cylindrical shape in the middle, the upper elastic body flange 4 being located at the upper part of the elastic body 15, the lower elastic body flange 23 being located at the lower part of the elastic body 15, a circuit board mounting cavity 22 being located inside the elastic body 15, the upper elastic body flange 4, the elastic body 15, the circuit board mounting cavity 22, and the lower elastic body flange 23 together constituting the sensor cavity, a clamping mechanism being located on the outer side of the elastic body 15, and a Hall sensor being located below the torque evaluation unit surface coating 3.

[0030] The torque evaluation unit 1 is equipped with a data processing module inside. A U-shaped magnet is located below the surface coating 3 of the torque evaluation unit. An oscillation coil is located inside the U-shaped magnet. The 22 is equipped with a wired acquisition module and a wireless transmission module inside.

[0031] The surface of the upper flange 4 of the elastomer is provided with eight upper flange mounting through holes 8. The middle part of the upper flange 4 of the elastomer is provided with an upper flange mounting step 6. An upper flange cover 5 is movably installed inside the upper flange mounting step 6. The outer surface of the upper flange 4 of the elastomer is provided with an upper flange outer end face U-shaped groove 12. A resonant coil 10 is movably installed inside the upper flange outer end face U-shaped groove 12. A resonant coil protective layer 11 is provided outside the resonant coil 10. The resonant coil protective layer 11 is movably inserted into the interior of the upper flange outer end face U-shaped groove 12.

[0032] The surface of the lower flange 23 of the elastomer is provided with eight lower flange mounting through holes 17 coaxial with the mounting through holes 8 of the upper flange. The middle part of the lower flange 23 of the elastomer is provided with a lower flange mounting step 20. The lower flange cover 21 is movably installed inside the lower flange mounting step 20. The outer end face speed measuring tooth 16 of the lower flange is fixedly installed on the outer surface of the lower flange 23 of the elastomer.

[0033] The clamping mechanism includes eight rotating shafts 27, all of which are rotatably mounted on the outer side of the elastic body 15. Each rotating shaft 27 has an upper semi-circular arc-shaped clamping plate 30 and a lower semi-circular arc-shaped clamping plate 31 rotatably mounted on its outer surface. The outer surface of the upper semi-circular arc-shaped clamping plate 30 is hinged to an upper connecting rod 28, and the outer surface of the lower semi-circular arc-shaped clamping plate 31 is hinged to a lower connecting rod 29. Every two adjacent lower connecting rods 29 are hinged to each other, and every two adjacent upper connecting rods 28 are hinged to each other.

[0034] The clamping mechanism also includes eight fixed rods 24, all of which are fixedly installed on the outer surface of the elastic body 15. Each fixed rod 24 has a telescopic rod 25 slidably installed on its outer end, and each telescopic rod 25 has a connecting buckle 26 fixedly installed on its outer end. The connecting buckle 26 is hingedly connected to the upper connecting rod 28 and the lower connecting rod 29.

[0035] The fixed rod 24 is provided with a spring groove 32 inside. A compression spring 33 is movably installed between the telescopic rod 25 and the inside of the spring groove 32. One end of the compression spring 33 is connected to the inner wall of the spring groove 32, and the other end of the compression spring 33 is connected to the telescopic rod 25.

[0036] Through the cooperation of the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31, the device can be used by directly inserting the connecting parts of the equipment under test into the mounting through hole 8 of the upper flange, thereby making them contact the surfaces of the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31. At this time, the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31 will be opened outward under pressure, and at the same time, it will drive the upper connecting rod 28 and the lower connecting rod 29 to bend inward along the hinge position of the connecting buckle 26, forming a V shape. Subsequently, the telescopic rod 25 inside the fixing rod 24 will be ejected by the elastic force of the compression spring 33, causing the upper connecting rod 28 to bend inward along the hinge position of the connecting buckle 26, forming a V shape. The connecting rod 28 and the lower connecting rod 29 move toward the blocking plate 9, thereby causing the upper connecting rod 28 and the lower connecting rod 29 to drive the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31 to rotate toward the axis of the upper flange mounting through hole 8. This allows the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31 to clamp and position the connecting parts of the tested equipment, preventing misalignment caused by differences in specifications between the connecting parts of the tested equipment and the upper flange mounting through hole. This enables quick connection of the tested equipment and allows the device to be adapted to different specifications of tested equipment by adjusting the bending angle of the upper connecting rod 28 and the lower connecting rod 29.

[0037] Eight baffles 9 are fixedly installed between the upper flange 4 and the lower flange 23 of the elastomer. The outer surfaces of the upper connecting rod 28 and the lower connecting rod 29 are in contact with the surface of the baffles 9.

[0038] The top surface of the upper flange 4 of the elastomer is provided with an outer inner ring stress absorption groove 7 near the outer periphery of the upper flange mounting step 6. The bottom surface of the upper flange 4 of the elastomer is provided with an inner outer ring metal demagnetization groove 13 near the outer side. The bottom surface of the upper flange 4 of the elastomer is provided with an inner inner ring stress absorption groove 14 near the inner side. A threaded hole 34 is provided between every two upper flange mounting through holes 8 on the top surface of the upper flange 4 of the elastomer.

[0039] After the connecting parts of the tested component are positioned through the upper flange mounting through hole 8 and the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31, the connecting parts can be connected and fixed to the torque measuring flange 2 through the threaded hole 34.

[0040] The bottom surface of the lower flange 23 of the elastomer is provided with a lower flange mounting step 20 near the outer periphery of the lower flange mounting step 20, and the top surface of the lower flange 23 of the elastomer is provided with a lower flange outer stress absorption groove 19 near the inner side.

[0041] The top and bottom surfaces of the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31 are both provided with arc surfaces.

[0042] When using this electromagnetic induction-based flange-type split high-speed dynamic torque sensor, it is first positioned with the device under test via the lower flange mounting step 20 on the lower flange 23 of the elastic body. Then, the connecting parts of the device under test pass through the mounting through hole 17 of the lower flange and are connected to the clamping mechanism through the lower flange through hole 17. Subsequently, the torque evaluation unit 1 is placed on a plane at a certain distance from the torque measuring flange 2 to ensure that the torque evaluation unit 1 can supply power to the torque measuring flange 2. At this time, the torque evaluation unit 1 is fixed to a plane of the device under test by bolts.

[0043] When the torque measuring flange 2 starts to rotate with the tested equipment, the outer end face of the lower flange 23 of the elastomer is designed with speed measuring teeth 16. These teeth, in conjunction with the Hall sensor located below the surface coating 3 of the torque evaluation unit 1, measure the speed of the tested equipment. The data is then collected by the data processing module in the torque evaluation unit 1. A U-shaped magnet below the surface coating 3 of the torque evaluation unit has a wound copper coil installed as an oscillation coil. The copper coil wound on the outer end face of the upper flange 4 of the elastomer serves as a resonant coil 10. Under the oscillation circuit formed by the oscillation coil and the resonant coil 10, the torque measuring flange 2 is wirelessly powered and transmitted through the internal circuit of the torque evaluation unit 1. After the resonant coil 10 powers the wired acquisition module and the wireless transmission module inside the sensor cavity, the wired acquisition module begins to collect the initial torque signal from the strain region of the elastomer 15. This signal is then transmitted wirelessly to the data processing module in the torque evaluation unit 1. After being analyzed, processed, converted, and integrated by the data processing module in the torque evaluation unit 1, the signal, along with the speed signal, is output as 485 and 4-20mA signals through a connector.

[0044] When connecting the connecting parts of the device under test, the connecting parts are directly inserted into the mounting through hole 8 of the upper flange, thus contacting the surfaces of the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31. At this time, the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31 will be opened outward under pressure, and at the same time, the upper connecting rod 28 and the lower connecting rod 29 will bend inward along the hinge position of the connecting buckle 26 to form a V shape. Subsequently, the telescopic rod 25 inside the fixing rod 24 will be ejected by the elastic force of the compression spring 33, causing the upper connecting rod 28 and the lower connecting rod 29 to bend inward. The rod 29 moves toward the blocking plate 9, thereby causing the upper connecting rod 28 and the lower connecting rod 29 to drive the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31 to rotate toward the axis of the upper flange mounting through hole 8. This allows the upper semi-circular arc-shaped clamping plate 30 and the lower semi-circular arc-shaped clamping plate 31 to clamp and position the connecting parts of the tested equipment, preventing misalignment caused by differences in the specifications of the connecting parts of the tested equipment and the upper flange mounting through hole. This enables quick connection of the tested equipment and allows the device to be adapted to different specifications of tested equipment by adjusting the bending angle of the upper connecting rod 28 and the lower connecting rod 29.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction, comprising a torque evaluation unit (1), characterized in that: The surface of the torque evaluation unit (1) is provided with a torque evaluation unit surface coating (3). The outside of the torque evaluation unit (1) is provided with a torque measuring flange (2). The torque measuring flange (2) is composed of an upper elastic body flange (4), an elastic body (15), and a lower elastic body flange (23) from top to bottom. The elastic body (15) is a hollow cylindrical shape. The upper part of the elastic body (15) is provided with an upper elastic body flange (4), and the lower part of the elastic body (15) is provided with a lower elastic body flange (23). The inside of the elastic body (15) is provided with a circuit board mounting cavity (22). The upper elastic body flange (4), the elastic body (15), the circuit board mounting cavity (22), and the lower elastic body flange (23) together constitute a sensor cavity. A clamping mechanism is provided on the outside of the elastic body (15). A Hall sensor is provided below the surface coating (3) of the torque evaluation unit.

2. The flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 1, characterized in that: The surface of the upper flange (4) of the elastomer is provided with eight upper flange mounting through holes (8). The middle part of the upper flange (4) of the elastomer is provided with an upper flange mounting step (6). An upper flange cover (5) is movably installed inside the upper flange mounting step (6). The outer surface of the upper flange (4) of the elastomer is provided with an upper flange outer end face U-shaped groove (12). A resonant coil (10) is movably installed inside the upper flange outer end face U-shaped groove (12). A resonant coil protective layer (11) is provided outside the resonant coil (10). The resonant coil protective layer (11) is movably inserted into the interior of the upper flange outer end face U-shaped groove (12).

3. The flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 1, characterized in that: The surface of the lower flange (23) of the elastomer is provided with eight lower flange mounting through holes (17) coaxial with the upper flange mounting through holes (8). The middle part of the lower flange (23) of the elastomer is provided with a lower flange mounting step (20). The lower flange cover (21) is movably installed inside the lower flange mounting step (20). The outer surface of the lower flange (23) of the elastomer is fixedly installed with a speed measuring tooth (16) on the outer end face of the lower flange.

4. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 1, characterized in that: The clamping mechanism includes eight rotating shafts (27), each rotating shaft (27) being rotatably mounted on the outer side of the elastic body (15). Each rotating shaft (27) has an upper semi-circular arc-shaped clamping plate (30) and a lower semi-circular arc-shaped clamping plate (31) rotatably mounted on its outer surface. The outer surface of the upper semi-circular arc-shaped clamping plate (30) is hinged to an upper connecting rod (28), and the outer surface of the lower semi-circular arc-shaped clamping plate (31) is hinged to a lower connecting rod (29). Every two adjacent lower connecting rods (29) are hinged to each other, and every two adjacent upper connecting rods (28) are hinged to each other.

5. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 4, characterized in that: The clamping mechanism also includes eight fixed rods (24), all of which are fixedly installed on the outer surface of the elastic body (15). Each fixed rod (24) has a telescopic rod (25) slidably installed on its outer end. Each telescopic rod (25) has a connecting buckle (26) fixedly installed on its outer end. Each connecting buckle (26) is hinged to the upper connecting rod (28) and the lower connecting rod (29).

6. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 5, characterized in that: The fixed rod (24) is provided with a spring groove (32) inside. A compression spring (33) is movably installed between the telescopic rod (25) and the spring groove (32). One end of the compression spring (33) is connected to the inner wall of the spring groove (32), and the other end of the compression spring (33) is connected to the telescopic rod (25).

7. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 6, characterized in that: Eight baffles (9) are fixedly installed between the upper flange (4) and the lower flange (23) of the elastomer, and the outer surfaces of the upper connecting rod (28) and the lower connecting rod (29) are in contact with the surface of the baffles (9).

8. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 1, characterized in that: The top surface of the elastomer upper flange (4) near the outer periphery of the upper flange mounting step (6) is provided with an outer inner ring stress absorption groove (7), the bottom surface of the elastomer upper flange (4) near the outer side is provided with an inner outer ring metal demagnetization groove (13), the bottom surface of the elastomer upper flange (4) near the inner side is provided with an inner inner ring stress absorption groove (14), and the top surface of the elastomer upper flange (4) is provided with a threaded hole (34) between every two upper flange mounting through holes (8).

9. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 1, characterized in that: The bottom surface of the elastomer lower flange (23) is provided with a lower flange mounting step (20) near the periphery of the lower flange mounting step (20), and the top surface of the elastomer lower flange (23) is provided with a lower flange outer stress absorption groove (19) near the inner side.

10. A flange-type split high-speed dynamic torque sensor based on electromagnetic induction according to claim 7, characterized in that: The top and bottom surfaces of the upper semi-circular arc-shaped clamping plate (30) and the lower semi-circular arc-shaped clamping plate (31) are both provided with arc surfaces.