Integrated gear fixture and calibration device

Abstract

The present application discloses an integrated gear fixture and correction and calibration device, in which the torque transmission structure is cylindrical as a whole, and the two ends of the torque transmission structure in the length direction are splined to the inner end fixture and the external thin-walled gear respectively; the strain gauge is fixed to the outer wall or the inner wall in the middle of the length direction of the torque transmission structure; the integrated gear fixture and correction and calibration device provided by the present invention integrates the clamping and measurement of the thin-walled gear through the inner end fixture, the outer end fixture, the torque transmission structure and the strain gauge assembly, and has a compact structure, which meets the centering installation and fastening clamping of the loaded test thin-walled gear, and realizes the online measurement of the torque exerted on the thin-walled gear; the centering and torque transmission of the thin-walled gear are separated, and high concentricity and large torque transmission are met at the same time, meeting the high-precision testing requirements; the strain gauge is arranged in the torque transmission structure to provide real-time feedback on the torsional deformation, the distance between the strain gauge and the test thin-walled gear is controllable, the test data is less affected by external interference, and the data is reliable.

Description

Technical Field

[0001] The invention relates to the field of gear detection devices, and in particular to an integrated gear fixture and correction calibration device. Background Art

[0002] In the existing technology, product performance testing is more important in both the R&D stage and the production stage. In gear products, it is more important to test the gear's fatigue, efficiency and other loading performance; the architecture of the test equipment requires a higher load measurement accuracy to ensure the readiness of the test results. The gear load power source comes from the main shaft of the test equipment, and the gear is connected to the main shaft through a fixture.

[0003] At present, there are usually two ways to measure gear torque: the first is to connect a torque measuring device between the spindle, the fixture and the gear under test. Although it can achieve higher measurement accuracy, it causes the spindle to be overhanged too long, the rotational stability of the shaft system is reduced, and it cannot be used in occasions with limited space or structure. The second is to add external force torque to the spindle and calibrate the relationship between it and the spindle current. Although the measuring device is omitted, this calibration relationship may change during the test due to the influence of the spindle temperature rise, resulting in the inability to obtain real torque data and the inability to reflect the gear load deformation state in real time. There is a possibility that the gear loading torque is insufficient or the torque is excessive, which may damage the gear under test. Summary of the invention

[0004] The main purpose of the present invention is to provide an integrated gear fixture and correction calibration device, aiming to solve the problems that high torque and high accuracy are difficult to integrate in the existing gear detection process, and the overall device has low adaptability and compactness.

[0005] In order to achieve the above object, the present invention provides an integrated gear fixture for testing thin-walled gears, comprising:

[0006] The inner end fixture is cylindrical in shape and one end in the length direction is used to form a coaxial fixation with the external main shaft;

[0007] The outer end clamp is cylindrical in shape as a whole, and the outer end clamp is coaxially fixed with the other end of the inner end clamp in the length direction;

[0008] An outer end bearing, mounted on the inner wall of the outer end of the outer end fixture in the length direction;

[0009] An inner end bearing is mounted on the inner wall of the inner end of the outer end fixture in the length direction, wherein the external thin-walled gear passes through the outer end bearing and the inner end bearing;

[0010] The torque transmission structure is cylindrical in shape as a whole, and the two ends of the torque transmission structure in the length direction are spline-connected to the inner end fixture and the outer thin-walled gear respectively;

[0011] The strain gauge assembly includes a power supply unit, a functional circuit unit and at least one strain gauge that form an electrical connection, wherein the strain gauge is fixed to the outer wall or the inner wall in the middle of the length direction of the torque transmission structure, and the power supply unit and the functional circuit unit are installed on at least one of the inner end clamp, the outer end clamp and the torque transmission structure.

[0012] Furthermore, the power supply unit includes a conductive coil wound around a peripheral wall of an end of the outer end clamp away from the inner end clamp, and the conductive coil is insulated from the outer end clamp.

[0013] Furthermore, a power supply structure is provided corresponding to the conductive coil, the power supply structure is mounted on the outer end fixture and is electrically connected to the conductive coil, wherein the conductive coil is also used for receiving and sending signals.

[0014] Furthermore, the integrated gear fixture also includes a remote sensing measurement transceiver head arranged corresponding to the functional circuit part.

[0015] Furthermore, the integrated gear fixture also includes a controller corresponding to the functional circuit part, the functional circuit part includes an annular electrode arranged on the outer periphery of the outer end fixture, and the controller performs contact data transmission with the annular electrode through an elastic conductive sheet.

[0016] Furthermore, the integrated gear clamp also includes an axial locking device, which is connected to the outer end clamp or the external thin-walled gear so as to clamp the inner end bearing with the outer end clamp.

[0017] Further, the integrated gear fixture also includes an inner seal and a skeleton seal device;

[0018] The inner seal is installed on the inner wall of the outer end fixture to form a seal in the axial direction, and the skeleton seal device is installed between the inner wall of the outer end fixture and the outer wall of the thin-walled gear to form a seal in the axial direction.

[0019] Furthermore, the power supply unit and the functional circuit unit are installed in the torque transmission structure and avoid the arrangement of the strain gauge.

[0020] Furthermore, a plurality of two-half baffle brackets are provided on the inner wall of the inner end clamp, and the two-half baffle brackets extend into the torque transmission structure, wherein the two-half baffle brackets are clearance-fitted in the radial direction of the torque transmission structure.

[0021] The present invention also provides a calibration device for calibrating an integrated gear fixture, comprising:

[0022] A connecting device in the form of a plate for connecting with an external thin-walled gear;

[0023] A lever connected to the connecting device and extending away from the central axis of the integrated gear fixture;

[0024] a weight connected to an end of the lever away from the connecting device;

[0025] A bracket is used to support the inner end clamp and the outer end clamp, wherein the bracket limits and fixes the rotation of the inner end clamp.

[0026] The integrated gear fixture and correction calibration device provided by the present invention integrates the clamping and measurement of thin-walled gears through an inner end fixture, an outer end fixture, a torque transmission structure and a strain gauge assembly. The structure is compact, and can meet the centering installation and fastening clamping of the loaded thin-walled gear to be tested, and further realizes the online measurement of the torque exerted on the thin-walled gear. The centering and torque transmission of the thin-walled gear are separated, and can simultaneously meet the requirements of high concentricity and large torque transmission, and meet the requirements of high-precision testing. The strain gauge is arranged in the torque transmission structure to provide real-time feedback on the torsional deformation. The distance between the strain gauge and the thin-walled gear to be tested is controllable, the test data is less affected by external interference, and the data is accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a front cross-sectional view of the integrated gear fixture of the first embodiment of the present invention (the power supply portion is not shown);

[0028] Figure 2 is a schematic diagram of an integrated gear fixture according to a first embodiment of the present invention;

[0029] Figure 3 is a three-dimensional cross-sectional view of the integrated gear fixture of the first embodiment of the present invention;

[0030] Figure 4 is a three-dimensional cross-sectional view of the integrated gear clamp of the first embodiment of the present invention (exploded state);

[0031] Figure 5 It is a schematic diagram of a calibration device according to a second embodiment of the present invention.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0034] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0035] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0036] Reference Figures 1 to 4 In one embodiment of the present invention, an integrated gear fixture for testing a thin-walled gear 001 includes:

[0037] The inner end fixture 100 is cylindrical in shape and one end in the length direction is used to form a coaxial fixation with the external main shaft 010;

[0038] The outer end fixture 200 is cylindrical in shape as a whole, and the outer end fixture 200 is coaxially fixed with the other end of the inner end fixture 100 in the length direction;

[0039] The outer end bearing 300 is mounted on the inner wall of the outer end of the outer end fixture 200 in the length direction;

[0040] The inner end bearing 400 is mounted on the inner wall of the inner end of the outer end fixture 200 in the length direction, wherein the external thin-walled gear 001 passes through the outer end bearing 300 and the inner end bearing 400;

[0041] The torque transmission structure 500 is cylindrical in shape as a whole, and the two ends of the torque transmission structure 500 in the length direction are spline-connected to the inner end fixture 100 and the outer thin-walled gear 001 respectively;

[0042] The strain gauge assembly includes a power supply unit 620, a functional circuit unit and at least one strain gauge 610 that form an electrical connection. The strain gauge 610 is fixed to the outer wall or inner wall in the middle of the length direction of the torque transmission structure 500. The power supply unit 620 and the functional circuit unit are installed on at least one of the inner end clamp 100, the outer end clamp 200 and the torque transmission structure 500.

[0043] In the prior art, it is difficult to combine high torque and high accuracy during gear detection, and the overall device has low adaptability and compactness.

[0044] In the present invention, the integrated gear fixture is installed on the main shaft 010 of the equipment. When the thin-walled gear 001 drives the main shaft 010 through the torque transmission structure 500, the high-precision real-time measurement of the torque is achieved through the strain gauge assembly.

[0045] The inner end fixture 100 is cylindrical in shape and one end in the length direction is used to form a coaxial fixation with the external spindle 010. The inner end fixture 100 and the spindle 010 can fit with the tapered hole of the spindle 010 under the action of the broaching mechanism to ensure the concentricity (coaxiality) of the inner end fixture 100 and the spindle 010.

[0046] The outer end fixture 200 is cylindrical in shape as a whole, and the outer end fixture 200 is coaxially fixed with the other end of the inner end fixture 100 in the length direction. The outer end fixture 200 and the inner end fixture 100 can be fixed in various ways. There can be a positioning mechanism (such as short cone positioning) between the outer end fixture 200 and the inner end fixture 100, and then they are rigidly connected by a hexagon socket head screw.

[0047] The outer end bearing 300 is mounted on the inner wall of the outer end of the outer end fixture 200 in the length direction. The inner end bearing 400 is mounted on the inner wall of the inner end of the outer end fixture 200 in the length direction. The external thin-walled gear 001 passes through the outer end bearing 300 and the inner end bearing 400. The thin-walled gear 001 can be supported by the outer end bearing 300 and the inner end bearing 400. The type of the outer end bearing 300 and the inner end bearing 400 can both be angular contact bearings to ensure the use effect of the bearings.

[0048] The torque transmission structure 500 is cylindrical in shape as a whole, and the two ends of the torque transmission structure 500 in the length direction are spline-connected to the inner end fixture 100 and the outer thin-walled gear 001. The torque of the main shaft 010 is transmitted to the thin-walled gear 001 through the inner end fixture 100 and the torque transmission structure 500 in sequence. The centering of the thin-walled gear 001 is achieved by the outer end fixture 200 in conjunction with the outer end bearing 300 and the inner end bearing 400.

[0049] The strain gauge assembly includes a power supply unit 620, a functional circuit unit and at least one strain gauge 610 that form an electrical connection. The functional circuit unit usually includes a bridge circuit and an amplifier. The strain gauge 610 is a sensor that can convert mechanical deformation into resistance change. When the tested component is subjected to force and generates strain, the strain gauge can convert this strain into resistance change. In order to convert the tiny resistance change of the strain gauge 610 into a measurable voltage signal, the strain gauge 610 needs to be used in conjunction with the functional circuit unit. The strain gauge 610 is fixed to the outer wall of the middle part of the length direction of the torque transmission structure 500. The functional circuit unit may include an amplifier and / or a bridge circuit, and is fixed to the outer end fixture 200 by a hexagon socket head screw, and the functional circuit unit may also be assisted in fixing by a corresponding protective structure. For example, the functional circuit unit is fixed in a groove on the outer end fixture 200, and is restricted from being dislodged by a protective structure, so as to ensure that the functional circuit unit is reduced in the process of the spindle 010 driving the outer end fixture 200 to rotate, and to avoid introducing dynamic unbalance acceleration and affecting the measurement accuracy. The strain gauge 610 may be fixed to the torque transmission structure 500 in various ways (such as bonding, etc.).

[0050] After the functional circuit part of the strain gauge assembly collects the relevant signals, the signal transmission can be real-time or delayed. For example, the relevant data collected by the functional circuit part can be obtained after the test is completed, and then a corresponding analysis is formed with the entire test process. If the relevant signals collected by the functional circuit part are to be obtained in real time, a controller needs to be set for the corresponding functional circuit part, and the test results are obtained in real time through the controller, and the communication between the controller and the functional circuit part can be wireless or wired.

[0051] In summary, the clamping and measurement of the thin-walled gear 001 are integrated through the inner end clamp 100, the outer end clamp 200, the torque transmission structure 500 and the strain gauge assembly, and the structure is compact, which meets the centering installation and fastening clamping of the loaded thin-walled gear 001, and further realizes the online measurement of the torque exerted on the thin-walled gear 001; the centering and torque transmission of the thin-walled gear 001 are separated, which can simultaneously meet the high concentricity and large torque transmission, and meet the high-precision test requirements; the strain gauge 610 is arranged in the torque transmission structure 500 to provide real-time feedback on the torsional deformation, and the distance between the strain gauge 610 and the thin-walled gear 001 under test is controllable, the test data is less affected by external interference, and the data is accurate and reliable.

[0052] Reference Figures 2 to 3 In one embodiment, the power supply unit 620 includes a conductive coil wound around a peripheral wall of an end of the outer end fixture 200 away from the inner end fixture 100, and the conductive coil is insulated from the outer end fixture 200.

[0053] In this embodiment, if the relevant power supply components are installed on the inner end clamp 100, the outer end clamp 200 and the torque transmission structure 500, there are structural risks at high speeds due to the generally large mass of the power supply components. By winding a conductive coil on the outer peripheral wall of the outer end clamp 200, wireless power transmission can be achieved, and the conductive coil serves as the power supply unit 620. Specifically, during use, a changing magnetic field is formed outside and acts on the conductive coil, thereby forming a voltage at the conductive coil. Insulation needs to be set between the conductive coil and the outer end clamp 200, otherwise the conductive coil cannot work normally. Specifically, the insulation method can be various, such as setting insulation on the peripheral wall of the body of the conductive coil, or setting an insulating layer on the peripheral wall of the outer end clamp 200 away from the inner end clamp 100 (when the conductive coil itself has no insulation, the winding needs to be spaced), or setting insulation on the peripheral wall of the body of the conductive coil and setting insulation at the corresponding position on the outer end clamp 200.

[0054] In one embodiment, a power supply structure is provided corresponding to the conductive coil, the power supply structure is mounted on the outer end fixture 200 and is electrically connected to the conductive coil, wherein the conductive coil is also used to receive and send signals.

[0055] In this embodiment, if wireless equipment is needed to realize the interaction between the integrated gear fixture and the external information, it is necessary to add a corresponding transmission structure, which will have an adverse effect in a high-speed use environment and increase the maintenance workload. By utilizing the existence of the conductive coil, a changing magnetic field is output to the conductive coil, and the conductive coil can obtain a signal; a changing current is output to the conductive coil, and a changing magnetic field can be output, and the conductive coil can output a signal. The preferred structure of the power supply structure is a ring structure concentric with the outer end fixture 200, thereby ensuring the stability of the structure.

[0056] Reference Figures 1 to 4 In one embodiment, the integrated gear fixture further includes a remote sensing measurement transceiver head 700 arranged corresponding to the functional circuit portion.

[0057] In the aforementioned embodiments, the functional circuit part of the strain gauge assembly is not restricted from transmitting the relevant signals in real time. For example, the relevant data collected by the functional circuit part can be obtained after the test is completed, and then a corresponding analysis is formed with the entire test process. In this embodiment, the remote sensing measurement transceiver head 700 corresponding to the functional circuit part, the real-time communication between the two (the specific communication method can be various) enables the user to monitor the torque data in real time, and the automation and accuracy of the entire test process are improved. The fixed position of the remote sensing measurement transceiver head 700 is in the non-rotating position of the entire spindle system. In the specific installation process, various brackets of suitable shapes can be introduced to ensure the communication effect between the remote sensing measurement transceiver head 700 and the functional circuit part.

[0058] In one embodiment, the integrated gear clamp further includes a controller corresponding to the functional circuit unit, the functional circuit unit includes an annular electrode arranged on the periphery of the outer end clamp 200, and the controller performs contact data transmission with the annular electrode through an elastic conductive sheet.

[0059] Considering that in some test scenarios, a relatively high rotation speed is required, when the functional circuit unit communicates data with the outside world wirelessly, excessive rotation speed seriously affects the accuracy and stability of data transmission. In this embodiment, the controller can be installed on the non-rotating part of the main shaft, and the corresponding functional circuit unit is set. Part of the functional circuit unit is set on the periphery of the outer end clamp 200, and is electrically connected to the controller through an elastic conductive sheet. The elastic conductive sheet is not limited to one, nor is it limited to only data transmission, but also can be used for the transmission of electrical energy. During the rotation process, the elastic conductive sheet always keeps in touch with the functional circuit unit to complete the interaction between the functional circuit unit and the controller.

[0060] Reference Figures 1 to 4 In one embodiment, the integrated gear clamp further includes an axial locking device 800 , and the axial locking device 800 is connected to the outer end clamp 200 or the external thin-walled gear 001 so as to clamp the inner end bearing 400 with the outer end clamp 200 .

[0061] In this embodiment, the axial locking device 800 is introduced to improve the fixing effect of the inner end bearing 400. The fixing position of the axial locking device 800 can be the outer end fixture 200 or the external thin-walled gear 001, which is based on the inner end bearing 400. Among them, the axial locking device 800 is preferably fixed to the outer end fixture 200, thereby reducing the structural requirements for the thin-walled gear 001.

[0062] Reference Figures 1 to 4 , in one embodiment, the integrated gear fixture further includes an inner seal 920 and a skeleton seal 910;

[0063] The inner seal 920 is installed on the inner wall of the outer end fixture 200 to form a seal in the axial direction, and the skeleton sealing device 910 is installed between the inner wall of the outer end fixture 200 and the outer wall of the thin-walled gear 001 to form a seal in the axial direction.

[0064] In this embodiment, considering that there is a large amount of skating oil in some test environments, the skating oil is prevented from interfering with the operation of the internal related components through the inner seal 920 and the skeleton sealing device 910. The skeleton sealing device 910 can be arranged between the outer end bearing 300 and the inner end bearing 400 to form a seal. The form of the inner seal 920 is different according to the structure of the thin-walled gear 001, and the structure can also be diverse. For example, the inner seal 920 includes a protective device with an O-ring installed, which is pressed by a hexagon socket head screw with a spring washer, a flat washer and an O-ring under the flat washer into the center hole of the torque transmission structure 500 coated with thread glue.

[0065] In one embodiment, the power supply unit 620 and the functional circuit unit are installed in the torque transmission structure 500 and are arranged away from the strain gauge 610 .

[0066] In the aforementioned embodiment, considering the effect of centrifugal force and the cylindrical structure of the torque transmission structure 500, the power supply unit 620 and the functional circuit unit are installed in the torque transmission structure 500, and the possibility of fixing abnormalities of the power supply unit 620 and the functional circuit unit is reduced.

[0067] In one embodiment, a plurality of two-half baffle brackets are disposed on the inner wall of the inner end clamp 100 , and the two-half baffle brackets extend into the torque transmission structure 500 , wherein the two-half baffle brackets are clearance-fitted in the radial direction of the torque transmission structure 500 .

[0068] In this embodiment, considering that there may be abnormal axial movement between the torque transmission structure 500 and the inner end clamp 100, a two-half baffle bracket is introduced. Specifically, the installation position of the two-half baffle bracket can be on the torque transmission structure 500 or on the inner end clamp 100, and the two-half baffle bracket is a clearance fit in the radial direction of the torque transmission structure 500 (that is, the radial direction of the inner end clamp 100), so the two-half baffle bracket will not have an adverse effect on the centering between the torque transmission structure 500 and the inner end clamp 100, and can limit the abnormal axial movement between the torque transmission structure 500 and the inner end clamp 100. The number of the two-half baffle brackets is preferably more than three, and they are evenly arranged in the circumferential direction.

[0069] Reference Figure 5 The present invention also provides a calibration device for calibrating an integrated gear fixture, comprising:

[0070] The connecting device 002 is in the form of a plate and is used to form a connection with the external thin-walled gear 001;

[0071] Lever 003, connected to the connecting device 002 and extending away from the central axis direction of the integrated gear fixture;

[0072] A weight 004 connected to an end of the lever 003 away from the connecting device 002;

[0073] The bracket 005 is used to support the inner end clamp 100 and the outer end clamp 200 , wherein the bracket 005 limits and fixes the rotation of the inner end clamp 100 .

[0074] In this embodiment, the connecting device 002 is connected to the thin-walled gear 001, and the integrated gear fixture is supported by the bracket 005, and the rotation of the inner end fixture 100 is restricted (that is, the rotation of the outer end fixture 200 is restricted). By adjusting the weight and / or position of the weight 004, different torques are applied to the thin-walled gear 001, and the corresponding strain gauge assembly data is collected, so that the calibration curve can be obtained, providing a calculation basis for the subsequent use of the integrated gear fixture.

[0075] In summary, the integrated gear clamp and correction calibration device provided by the present invention integrates the clamping and measurement of the thin-walled gear 001 through the inner end clamp 100, the outer end clamp 200, the torque transmission structure 500 and the strain gauge assembly, and has a compact structure, which meets the centering installation and fastening clamping of the loaded test thin-walled gear 001, and further realizes the online measurement of the torque exerted on the thin-walled gear 001; the centering and torque transmission of the thin-walled gear 001 are separated, which can simultaneously meet the requirements of high concentricity and large torque transmission, and meet the requirements of high-precision testing; the strain gauge 610 is arranged in the torque transmission structure 500 to provide real-time feedback on the torsional deformation, and the distance between the strain gauge 610 and the test thin-walled gear 001 is controllable, the test data is less affected by external interference, and the data is accurate and reliable.

[0076] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An integrated gear fixture for testing thin-walled gears (001), characterized in that: include: The inner end fixture (100) is cylindrical in shape as a whole and one end in the length direction is used to form a coaxial fixation with the external main shaft (010); The outer end clamp (200) is cylindrical in shape as a whole, and the outer end clamp (200) is coaxially fixed with the other end of the inner end clamp (100) in the length direction; An outer end bearing (300) is mounted on the inner wall of the outer end of the outer end fixture (200) in the length direction; An inner end bearing (400) is mounted on the inner wall of the inner end of the outer end fixture (200) in the length direction, wherein the outer thin-walled gear (001) passes through the outer end bearing (300) and the inner end bearing (400); The torque transmission structure (500) is cylindrical in shape as a whole, and two ends of the torque transmission structure (500) in the length direction are spline-connected to the inner end clamp (100) and the outer thin-walled gear (001) respectively; A strain gauge assembly comprises a power supply unit (620), a functional circuit unit and at least one strain gauge (610) which form an electrical connection, wherein the strain gauge (610) is fixed to an outer wall or an inner wall in the middle of the length direction of the torque transmission structure (500), and the power supply unit (620) and the functional circuit unit are installed on at least one of the inner end clamp (100), the outer end clamp (200) and the torque transmission structure (500).

2. The integrated gear fixture according to claim 1, characterized in that: The power supply unit (620) comprises a conductive coil wound around a peripheral wall of an end of the outer end clamp (200) away from the inner end clamp (100), and the conductive coil is insulated from the outer end clamp (200).

3. The integrated gear fixture according to claim 2, characterized in that: A power supply structure is provided corresponding to the conductive coil, the power supply structure is mounted on the outer end fixture (200) and is electrically connected to the conductive coil, wherein the conductive coil is also used for receiving and sending signals.

4. The integrated gear fixture according to claim 1, characterized in that: The integrated gear fixture further comprises a remote sensing measurement transceiver head (700) arranged corresponding to the functional circuit portion.

5. The integrated gear fixture according to claim 1, characterized in that: The integrated gear fixture further comprises a controller arranged corresponding to the functional circuit part, the functional circuit part comprises an annular electrode arranged on the outer periphery of the outer end fixture (200), and the controller performs contact data transmission with the annular electrode via an elastic conductive sheet.

6. The integrated gear fixture according to any one of claims 1 to 5, characterized in that: The integrated gear clamp further comprises an axial locking device (800), wherein the axial locking device (800) is connected to the outer end clamp (200) or the external thin-walled gear (001) so as to clamp the inner end bearing (400) with the outer end clamp (200).

7. The integrated gear fixture according to any one of claims 1 to 5, characterized in that: The integrated gear fixture further comprises an inner seal (920) and a skeleton seal device (910); The inner seal (920) is installed on the inner wall of the outer end fixture (200) to form a seal in the axial direction, and the skeleton sealing device (910) is installed between the inner wall of the outer end fixture (200) and the outer wall of the thin-walled gear (001) to form a seal in the axial direction.

8. The integrated gear fixture according to any one of claims 1 to 5, characterized in that: The power supply unit (620) and the functional circuit unit are installed in the torque transmission structure (500) and are arranged to avoid the strain gauge (610).

9. The integrated gear fixture according to any one of claims 1 to 5, characterized in that: A plurality of two-half baffle brackets are provided on the inner wall of the inner end clamp (100), and the two-half baffle brackets extend into the torque transmission structure (500), wherein the two-half baffle brackets are clearance-fitted in the radial direction of the torque transmission structure (500).

10. A calibration device for calibrating the integrated gear fixture according to any one of claims 1 to 9, characterized in that: include: A connecting device (002) in the form of a plate for connecting with an external thin-walled gear (001); A lever (003) connected to the connecting device (002) and extending away from the central axis of the integrated gear fixture; A weight (004) connected to an end of the lever (003) away from the connecting device (002); The support (005) is used to support the inner end clamp (100) and the outer end clamp (200), wherein the support (005) limits and fixes the rotation of the inner end clamp (100).

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