Low wind resistance pulling torque dynamic measurement driving integrated device

Abstract

A low wind resistance tension torque dynamic measurement driving integrated device is arranged on a bottom plate and fixed and supported through a support system, and multiple modules such as a power system, a transmission system, a sensor system, a variable-pitch adjusting system and a low wind resistance shell system are integrated; the motor of the power system drives the transmission system to rotate, driving the propeller to rotate at high speed; the sensor system is arranged between the power system and the transmission system, and the sensor system is flexibly connected and transmitted; the variable-pitch adjusting system is arranged in the hollow cavity of the power system, the sensor system and the transmission system; the low wind resistance shell system is arranged in a "torpedo-shaped" streamline shape; and a damping structure is arranged between the low wind resistance shell system and the bottom plate. The low wind resistance tension torque dynamic measurement driving integrated device integrates driving and measurement, has variable-pitch test compatibility, low wind resistance interference, streamline shell design and the like, has high running stability, effectively absorbs impact and vibration, and realizes stable and reliable measurement of tension and torque under high-speed rotation.

Description

Technical Field

[0001] This application relates to the technical field of propeller performance testing equipment, and specifically to an integrated device for dynamic measurement and drive of low wind resistance thrust and torque. Background Technology

[0002] As a core component of a propulsion system, the propeller's thrust and torque performance directly determine the system's efficiency and stability. Accurate measurement of thrust and torque data at different speeds and pitches is crucial in the research, development, production, and maintenance of variable-pitch propellers. Existing test benches have several limitations: First, most benches are only suitable for fixed-pitch propellers and cannot perform dynamic testing of variable-pitch propellers; second, some benches have high wind resistance, leading to data deviations due to airflow interference during high-speed testing; third, existing propeller power unit speeds are below 4000 rpm, as traditional bearings are prone to overheating and accuracy degradation at high speeds (above 6000 rpm); fourth, existing propeller test benches are large and have low integration, with most sensors external to the power unit's main shaft, making them susceptible to moisture and corrosion, reducing their lifespan. Furthermore, their measurement accuracy is low, failing to meet the accuracy requirements of high-speed testing scenarios; fifth, existing test benches cannot simultaneously measure speed, thrust, and torque while the propeller is rotating. Summary of the Invention

[0003] To address the shortcomings and problems of existing shell cavity grinding processes, a low-drag dynamic measurement and drive device for tension and torque is provided. With built-in sensors, it can simultaneously measure tension and torque while the propeller is rotating, and is compatible with the testing of variable-pitch propellers. This solves the problems of existing equipment that can only measure single tension or torque, cannot measure high-speed propellers or variable-pitch propellers, and suffer from large wind resistance interference and low testing accuracy. It enables accurate measurement of the performance of ordinary propellers and variable-pitch propellers under all operating conditions.

[0004] The technical solution adopted in this application is as follows: A low-drag torque dynamic measurement and drive integrated device is installed on a base plate and fixedly supported by a support system. The unit integrates multiple modules such as power, transmission, and sensors, including a power system at the left end, a sensor system in the middle, a transmission system at the right end, an internal pitch adjustment system, and a low-drag shell system. The power system is a driving motor that drives the transmission system to rotate, which in turn drives the propeller to rotate at high speed. The sensor system is located between the power system and the transmission system and is configured as a flexible connection transmission. The pitch adjustment system is located at the axial midpoint inside the power system, sensor system, and transmission system. The low-drag shell system is designed as a streamlined "torpedo-shaped" structure. Furthermore, a shock-absorbing structure is provided between the low-drag shell system and the base plate at the bottom.

[0005] Furthermore, the power system is a high-speed permanent magnet synchronous motor, preferably a 60KW rated power permanent magnet synchronous motor. A connecting plate is installed on the outer diameter of the output shaft at the right end of the motor. The connecting plate is a hollow stepped structure. The motor shaft is fixedly connected to the pressure plate at the right end of the step by screws. Furthermore, the right end of the connecting plate has evenly distributed axial holes on its radial circumference. The diameter of the axial holes matches the sensor flange bushing. Furthermore, the permanent magnet synchronous motor is equipped with a water-cooling heat dissipation structure.

[0006] Furthermore, the sensor system includes a sensor, an adapter flange bushing, a sensor flange bushing, a shock-absorbing pad, a sensor arc-shaped base, and a polyurethane sleeve. The sensor is configured as a "barbell" mechanism with disc-shaped flanges at both ends and a smaller one in the middle. The sensor arc-shaped base is installed on the outer diameter of the smaller outer diameter of the sensor. The left flange of the sensor has axial holes on its radial circumference that are adapted to the connecting disc, and the sensor flange bushing is installed in the axial holes. The right flange of the sensor has evenly distributed axial holes on its radial circumference, and an elastic polyurethane sleeve is installed in the axial holes. The adapter flange bushing is installed inside the polyurethane sleeve. An elastic polyurethane shock-absorbing pad is placed between the inner end face of the adapter flange bushing and the contact surface of the right flange of the sensor. Furthermore, the sensor is preferably a Russian-customized high-precision integrated tension and torque sensor.

[0007] Furthermore, the transmission system includes bearing I, a main shaft, bearing II, a tapered adjusting ring, a bearing rear cover, an inner spacer, an outer spacer, a main shaft housing, a bearing front cover, an adjusting inner ring, an adjusting outer ring, and a blade fixing disc. The main shaft housing is configured as a hollow, multi-step structure. The main shaft is installed in a smaller cavity on the right side of the main shaft housing. This main shaft is configured as a hollow shaft with an external tapered stepped shaft structure. Furthermore, the adjusting inner ring, adjusting outer ring, bearing I, inner spacer, outer spacer, and bearing II are sequentially installed on the outer diameter of the tapered step on the right end of the main shaft. The bearing rear cover is installed on the left end of the main shaft housing. The bearing front cover is installed on the right end of the main shaft housing. The tapered adjusting ring is installed on the right end of bearing II. The blade fixing disc is installed on the right end of the bearing front cover.

[0008] Furthermore, bearing I and bearing II are precision ceramic cylindrical roller bearings of different sizes.

[0009] Furthermore, the left end flange of the main shaft is provided with an axial hole that matches the right end flange of the sensor, and the axial hole is adapted to install the adapter plate flange bushing; the right end of the main shaft is provided with a standardized mounting flange, which is connected to the integrated blade fixing plate through 6 circumferentially distributed bolt holes.

[0010] Furthermore, the blade fixing plate is fixedly connected to the right end face of the main shaft by screws. Furthermore, the right end of the blade fixing plate has standard blade mounting holes and positioning stops.

[0011] Furthermore, the larger cavity at the left end of the spindle box is adapted to and fixed to the outer diameter of the right end of the motor, and is connected and fixed by bolts, thereby connecting and fixing the power system and the transmission system; furthermore, the transmission system connected to the left end of the power system is placed in the larger cavity at the left end of the spindle box.

[0012] Furthermore, the pitch adjustment system includes a pitch control rod, a sliding bearing, a servo motor, a guide rail slide, a lead screw, and a lead screw nut seat. The guide rail slide is installed at the left end of the support base I. The servo motor is installed at the left end of the guide rail slide, and the lead screw is installed at the right end of the servo motor. The lead screw is fitted with a lead screw nut seat, which slides left and right along the lead screw axis on the guide rail slide. The pitch control rod is configured to pass through the left end of the motor, through the central hole of the motor shaft, the central hole of the sensor, and the central hole of the main shaft, and reach the left end to connect with the propeller pitch control mechanism. Furthermore, the left end of the pitch control rod is fixedly connected to the lead screw nut seat. The sliding bearing is installed in the hollow part of the motor shaft.

[0013] Furthermore, the support system includes support seat I, support seat II, a base plate, and an embedded shock absorber. The base plate is located at the bottom, with support seat I fixedly mounted on the upper left side and support seat II fixedly mounted on the upper right side. Furthermore, support seat I has a hollow stepped structure on its upper part that matches the outer diameter of the left end of the motor, and is fixedly connected to support the motor by bolts. Support seat II has a hollow stepped structure on its upper part that matches the outer diameter of the spindle box, and is fixedly connected to support the spindle box by bolts.

[0014] Furthermore, an embedded shock absorber is installed at the connection between the support base I and the base plate; furthermore, an embedded shock absorber is installed at the connection between the support base II and the base plate.

[0015] Furthermore, the upper part of the support base I has a circular structure that matches the motor housing; furthermore, the upper part of the support base II has a large arc structure with the left side larger than the right side, the left end of the arc matching the right end of the rectifier sleeve, and the right end of the arc matching the left end of the head guide ring; the support base I and support base II are preferably made of 7075-T6 aviation aluminum alloy, and the surface of the aluminum alloy is anodized.

[0016] Furthermore, the low-drag outer shell system is designed with an overall streamlined shape resembling a torpedo, including a fairing, a fairing sleeve, and a head guide ring. The fairing is located at the tail and installed on the left end of support base I, and is preferably made of carbon fiber. The fairing sleeve has a hollow circular structure and is fitted onto the outer surface of the left section of the main shaft box. The head guide ring is installed between support base II and the blade mounting plate, and has an internally hollow, left-larger-right-smaller arc structure. The left end of the arc matches the right end of support base II, and the right end matches the left end of the arc. Furthermore, the shape of the fairing sleeve is adapted to the shape of the motor and support base II, maintaining a streamlined transition.

[0017] The beneficial effects of this application are as follows: 1. The low-drag tension and torque dynamic measurement drive integrated device of this patent has high integration and high operational stability. By optimizing the structural design and core component selection, the sensor is integrated into the power unit, reducing the size and extending the sensor life. At the same time, the use of high-precision ceramic bearings effectively controls the temperature rise and vibration of the equipment, and there is no performance degradation during continuous operation; 2. The low-drag tension and torque dynamic measurement drive integrated device of this patent dynamically performs tension and torque tests. The core component is a high-precision tension and torque integrated sensor, which can simultaneously measure tension and torque under high-speed rotation. It is adapted to high power and high speed, meeting the testing requirements of high-speed propellers; 3. This patented low-drag torque dynamic measurement and drive integrated device features variable pitch testing compatibility. A hollow main shaft with a variable pitch rod structure is used, and a servo motor drives the rod to move left and right to achieve variable pitch functionality. It supports pitch angle adjustment at various angles and offers excellent testing accuracy. 4. This patented low-drag torque dynamic measurement and drive integrated device features low wind resistance interference. The streamlined shell design significantly reduces airflow interference, ensuring the stability of the flow field around the propeller, and providing test data closer to actual operating conditions. 5. This patented low-drag torque dynamic measurement and drive integrated device incorporates a shock-absorbing structure. The bottom of support base I and support base II uses embedded rubber shock absorbers connected to the base plate, effectively reducing vibration transmission. Simultaneously, one end of the sensor is rigidly connected to the motor output shaft via a flange, while the other end is flexibly connected to the main shaft flange of the transmission system via a polyurethane sleeve and gasket, effectively absorbing impact and vibration and extending sensor lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the integrated device for dynamic measurement and drive of low wind resistance tension and torque.

[0019] Figure 2 This is a schematic diagram of a low-drag, tensile, and torque dynamic measurement and drive integrated device.

[0020] Figure 3 An exploded schematic diagram of an integrated device for dynamic measurement and drive of low wind resistance tension and torque.

[0021] Figure 4 This is a partially enlarged schematic diagram of the sensor system for a low-drag, tension, and torque dynamic measurement drive integrated device.

[0022] Figure 5 This is a partially enlarged schematic diagram of the transmission system of the integrated device for dynamic measurement of low wind resistance tension and torque.

[0023] Figure 6 This is a partially enlarged schematic diagram of the support base II for the integrated device for dynamic measurement and drive of low wind resistance tension and torque.

[0024] Figure 7 This is a partially enlarged schematic diagram of the support base I for the integrated device for dynamic measurement and drive of low wind resistance tension and torque.

[0025] The attached figures are labeled as follows: 1-Fairing, 2-Support base I, 3-Permanent magnet synchronous motor, 4-Connecting plate, 5-Pressure plate, 6-Sensor flange bushing, 7-Sensor, 8-Transfer plate flange bushing, 9-Bearing rear cover, 10-Bearing I, 11-Main shaft, 12-Inner spacer, 13-Outer spacer, 14-Bearing II, 15-Bearing front cover, 16-Conical adjusting ring, 17-Head guide ring, 18-Blade fixing plate, 19-Support base II, 20-Embedded shock absorber, 21-Base plate, 22-Adjusting inner ring, 23-Adjusting outer ring, 24-Polyurethane sleeve, 25-Shock damping pad, 26-Sensor arc base, 27-Main shaft box, 28-Fairing sleeve, 29-Sliding sleeve bearing, 30-Guide rail slide, 31-Variable pitch tie rod, 32-Screw nut seat, 33-Screw, 34-Servo motor. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the present application will be further described below with reference to examples and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present application.

[0027] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] It should be noted in advance that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly in this application. For example, they can refer to a fixed connection, an integral connection, a direct connection, or a detachable connection. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] The following is combined Figure 1-7 The present application will be described in detail through specific implementation methods.

[0030] like Figure 1-3 As shown, the low-drag thrust and torque dynamic measurement drive integrated device of this application is mounted on the base plate 21 and fixedly supported by the support system. The unit integrates power, transmission, and sensor modules, including a power system at the left end, a sensor system in the middle, a transmission system at the right end, an internal pitch adjustment system, and a low-drag shell system. This unit can accurately measure thrust and torque data at different speeds and pitches. The power system includes a permanent magnet synchronous motor 3, which drives the transmission system to rotate, further driving the propeller to rotate at high speed. The sensor system is located between the power system and the transmission system, and simultaneously measures thrust and torque data under high-speed rotation. The pitch adjustment system is installed throughout the power system, sensor system, and transmission system, and can dynamically measure the data of the pitch-adjustable propeller. The low-drag shell system is designed with a streamlined "torpedo" shape to effectively reduce data deviation caused by its own airflow interference. Furthermore, the low-drag shell system and the bottom base plate are equipped with a shock-absorbing structure to reduce vibration transmission during the testing process.

[0031] The power system is a high-speed permanent magnet synchronous motor 3, preferably a permanent magnet synchronous motor 3 with a rated power of 60KW. The permanent magnet synchronous motor 3 provides a stable power output of up to 8000 rpm. A connecting plate 4 is installed on the outer diameter of the shaft at the right end of the motor. The connecting plate 4 is a hollow stepped structure. The shaft of the permanent magnet synchronous motor 3 is fixedly connected to the pressure plate 5 at the right end of the step by screws. Furthermore, the right end of the connecting plate 4 has evenly distributed axial holes on its radial circumference. The diameter of the axial holes matches the sensor flange bushing 6. The rotation of the shaft of the permanent magnet synchronous motor 3 drives the connected sensor 7 to rotate.

[0032] Furthermore, the permanent magnet synchronous motor 3 is equipped with a water-cooled heat dissipation structure. Through the circulation of cooling water, the temperature of the permanent magnet synchronous motor 3 during high-speed operation is reduced, extending its service life and improving its reliability.

[0033] Furthermore, the shaft of the permanent magnet synchronous motor 3 is designed as a hollow structure to facilitate the passage of the variable pitch tie rod 31.

[0034] like Figure 4As shown, the sensor system includes a sensor 7, a transition plate flange bushing 8, a sensor flange bushing 6, a shock-absorbing pad 25, a sensor arc-shaped base 26, and a polyurethane sleeve 24. The sensor 7 is configured as a "barbell" mechanism with disc-shaped flanges at both ends and a smaller middle flange. The sensor arc-shaped base 26 is installed on the smaller outer diameter of the sensor 7, which serves to fix and support the sensor 7. The left flange of the sensor 7 has axial holes on its radial circumference that are adapted to the connecting plate 4. The sensor flange bushing 6 is installed in the axial holes, which provides a rigid connection and transmission function. The right flange of the sensor 7 has evenly distributed axial holes on its radial circumference. The elastic polyurethane sleeve 24 is installed in the axial holes. The transition plate flange bushing 8 is installed inside the polyurethane sleeve 24. The elastic polyurethane shock-absorbing pad 25 is placed between the inner end face of the transition plate flange bushing 8 and the contact surface of the right flange of the sensor 7, which provides a flexible connection and transmission function, effectively absorbs shock and vibration, extends the life of the sensor 7, and realizes the synchronous transmission of power and data acquisition.

[0035] Furthermore, the sensor 7 is a high-precision integrated tension and torque sensor. The sensor measures 0-1500N of tension and 0-150N·m of torque, with an accuracy class of 0.1 and a sampling frequency of up to 10kHz.

[0036] like Figure 5 As shown, the transmission system includes bearing I 10, main shaft 11, bearing II 14, conical adjusting ring 16, bearing rear cover 9, inner spacer 12, outer spacer 13, main shaft box 27, bearing front cover 15, adjusting inner ring 22, adjusting outer ring 23, and blade fixing plate 18. The main shaft box 27 is a hollow multi-step structure. The main shaft 11 is installed in a smaller cavity on the right side of the main shaft box 27. This main shaft 11 is a hollow shaft with an external conical stepped shaft structure. Further, the adjusting inner ring 22, adjusting outer ring 23, bearing I 10, inner spacer 12, outer spacer 13, and bearing II 14 are sequentially installed on the outer diameter of the conical step on the right end of the main shaft 11, supporting the rotation of the main shaft 11 through bearings I 10 and II 14. The bearing rear cover 9 is installed at the left end of the spindle box 27. The bearing rear cover 9 is pressed and axially fixed to bearing I 10 by adjusting the inner ring 22 and the outer ring 23. Further, the inner spacer 12 and the outer spacer 13 adjust the axial clearance between bearing I 10 and bearing II 14. The bearing front cover 15 is installed at the right end of the spindle box 27. The bearing front cover 15 presses the outer ring of bearing II 14 for axial fixation. The conical adjusting ring 16 is installed at the right end of bearing II 14. The conical adjusting ring 16 presses the inner ring of bearing II 14 for axial limiting and fixation. The blade fixing plate 18 is installed at the right end of the bearing front cover 15. The left end of the blade fixing plate 18 presses the conical adjusting ring 16 to limit its axial movement.

[0037] Furthermore, the bearings I10 and II14 are precision ceramic cylindrical roller bearings of different sizes. The cylindrical roller bearings allow the main shaft 11 to have a certain degree of freedom in the axial direction to ensure the measurement accuracy of the propeller's axial thrust. Furthermore, the bearings I10 and II14 are grease-lubricated, with an SP precision grade and a limiting speed of 22,000 rpm. They have the characteristics of low heat generation and low friction coefficient, effectively reducing vibration and energy loss at high speeds.

[0038] Furthermore, the left end flange of the main shaft 11 is provided with an axial hole that is compatible with the right end flange of the sensor 7. The axial hole is adapted to install the adapter flange bushing 8, which serves as a connection and transmission function. The right end of the main shaft 11 is provided with a standardized mounting flange, which is connected to the integrated blade fixing plate 18 through 6 circumferentially distributed bolt holes.

[0039] Furthermore, the blade fixing plate 18 is fixedly connected to the right end face of the main shaft 11 by screws; furthermore, the right end of the blade fixing plate 18 has standard blade mounting holes and positioning stops, which can meet the installation requirements of most blades.

[0040] Furthermore, the larger cavity at the left end of the spindle box 27 is adapted to and fixed to the outer diameter of the right end of the motor 3, and is connected and fixed by bolts, thereby connecting and fixing the power system and the transmission system; furthermore, the transmission system connected to the left end of the power system is placed in the larger cavity at the left end of the spindle box 27 to ensure that the transmission system is stable and reliable when working.

[0041] The variable pitch adjustment system includes a variable pitch rod 31, a sliding sleeve bearing 29, a servo motor 34, a guide rail slide 30, a lead screw 33, and a lead screw nut seat 32. The guide rail slide 30 is installed at the left end of the support base I2. The servo motor 34 is installed at the left end of the guide rail slide 30, and the lead screw 33 is installed at the right end of the servo motor 34. The lead screw 33 is fitted with a lead screw nut seat 32, which slides left and right along the axis of the lead screw 33 on the guide rail slide 30, providing support. The variable pitch rod 31 is designed to pass through the left end of the motor 34 and... The central holes of the rotating shaft, sensor 7, and main shaft 11 connect to the left end of the propeller pitch mechanism. Furthermore, the left end of the pitch-changing rod 31 is fixedly connected to the lead screw nut seat 32. The sliding sleeve bearing 29 is installed in the hollow part of the motor 3's rotating shaft, serving to support the pitch-changing rod 31. The servo motor 31 drives the lead screw 33 to rotate, and the threaded structure of the lead screw 33 and lead screw nut seat 32 enables the left and right movement of the lead screw nut seat 32 and the pitch-changing rod 31, thereby driving the right end propeller pitch mechanism and achieving stepless adjustment of the pitch angle to meet the dynamic testing requirements of the pitch-changing propeller.

[0042] like Figure 5-6As shown, the support system includes a support base I2, a support base II19, a base plate 21, and an embedded shock absorber 20. The base plate 21 is located at the bottom, and the support base I2 is installed and fixed on the upper left end of the base plate 21, while the support base II19 is installed and fixed on the upper right end of the base plate. Furthermore, the upper part of the support base I2 is provided with a hollow step structure that matches the outer diameter of the left end of the motor, and the motor 3 is fixedly connected to it by bolts. The upper part of the support base II19 is provided with a hollow step structure that matches the outer diameter of the spindle box 27, and the spindle box 27 is fixedly connected to it by bolts.

[0043] Furthermore, an embedded shock absorber 20 is installed at the connection between the support base I2 and the base plate 21 to effectively reduce vibration transmission; furthermore, an embedded shock absorber 20 is installed at the connection between the support base II19 and the base plate 21 to effectively reduce vibration transmission.

[0044] Furthermore, the upper part of the support base I2 is designed with a circular structure that matches the outer shell of the motor 3, which helps to reduce wind resistance; furthermore, the upper part of the support base II19 is designed with a large arc structure on the left and a small arc on the right, with the left end of the arc matching the right end of the rectifier sleeve 28 and the right end matching the left end of the head guide ring 17, which helps to reduce wind resistance.

[0045] Furthermore, the support base I2 and support base II19 are preferably made of 7075-T6 aviation aluminum alloy. The aluminum alloy surface is anodized to improve corrosion resistance and wear resistance, and extend service life.

[0046] The low-drag outer shell system is designed with a streamlined shape resembling a torpedo, including a fairing 1, a fairing sleeve 28, and a head guide ring 17. The fairing 1 is located at the left end and installed at the left end of the support base I2. The fairing 1 is preferably made of carbon fiber. The fairing sleeve 28 has a hollow circular structure and is fitted onto the outer surface of the left section of the main shaft box 27. The head guide ring 17 is installed between the support base II19 and the blade fixing disk 18. The head guide ring 17 has an internally hollow, left-larger-right-smaller arc structure. The size of the left end of the arc matches the shape of the right end of the support base II19, and the size of the right end of the arc structure matches the shape of the left end of the blade fixing disk 18, thereby reducing wind resistance.

[0047] Furthermore, the shape of the rectifier sleeve 28 is adapted to match the shape of the motor 3 and the support seat II 19, maintaining a streamlined transition.

[0048] Working principle: First, the motor 3 of the power system is started. The rotation of the motor 3 shaft drives the sensor system connected to the right end, which in turn drives the transmission system connected to the right end. The main shaft 11 of the transmission system drives the blade fixing disk 18 on the right end to rotate, which in turn drives the connected blade to rotate. Second, the transmission system measures the thrust torque of the propeller in the rotating state. Further, the servo motor 34 of the pitch adjustment system drives the lead screw 33 to rotate, which drives the lead screw nut seat 32 to slide left and right, which in turn drives the pitch adjustment rod 31 to move left and right, thereby realizing stepless adjustment of the pitch angle and meeting the dynamic testing requirements of the pitch propeller.

[0049] Furthermore, one end of the sensor 7 in the sensor system is rigidly connected to the rotating shaft of the motor 3 via a flange, and the other end is flexibly connected to the flange of the main shaft 11 of the transmission system via a polyurethane sleeve 24 with a certain elasticity and a shock-absorbing pad 25, thereby effectively absorbing shock and vibration, extending the sensor life, and realizing the synchronous transmission of power and data acquisition.

[0050] Furthermore, the low-drag tension torque dynamic measurement drive integrated device adopts a streamlined design, including fairing 1, support seat I 2, support seat II 19, rectifier sleeve 28, and head guide ring 17. The overall shape is similar to that of a torpedo, which effectively reduces the data deviation caused by its own airflow interference. Furthermore, the bottom of support seat I 2 and support seat II 19 is connected to the base plate 21 by embedded rubber shock absorbers 20, which effectively reduces vibration transmission.

[0051] The above embodiments are preferred implementations of this application. In addition, this application can also be implemented in other ways. Various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this application shall fall within the scope of the technical solution of this application.

[0052] To facilitate a better understanding by those skilled in the art of the improvements made by this application compared to the prior art, some of the accompanying drawings and descriptions have been simplified, and for clarity, some other elements have been omitted from the documents. Those skilled in the art should realize that these omitted elements also constitute the content of this application.

Claims

1. A low-drag, dynamic measurement and driving integrated device for tension and torque, characterized in that: The device integrates multiple modules such as power, transmission, and sensors, and is mounted on a base plate and fixedly supported by a support system. It includes a power system at the left end, a sensor system in the middle, a transmission system at the right end, an internal pitch adjustment system, and a low-drag shell system. The power system is a driving motor that drives the transmission system to rotate, further driving the propeller to rotate at high speed. The sensor system is located between the power system and the transmission system, and is configured with a flexible connection transmission. The pitch adjustment system is located at the axial midpoint inside the power system, sensor system, and transmission system. The low-drag shell system is streamlined in a "torpedo" shape; furthermore, a shock-absorbing structure is incorporated between the low-drag shell system and the base plate.

2. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 1, characterized in that: The power system is a high-speed permanent magnet synchronous motor, specifically a 60kW rated power permanent magnet synchronous motor. A connecting plate is mounted on the outer diameter of the output shaft at the right end of the motor. This connecting plate is a hollow stepped structure, and the permanent magnet synchronous motor shaft is fixedly connected to the pressure plate at the right end of the step by screws. Furthermore, the right end of the connecting plate has evenly distributed axial holes on its radial circumference, and the diameter of these axial holes matches the sensor flange bushing. Furthermore, the permanent magnet synchronous motor is equipped with a water-cooling heat dissipation structure.

3. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 1, characterized in that: The sensor system includes a sensor, a connector flange bushing, a sensor flange bushing, a shock-absorbing pad, a sensor arc-shaped base, and a polyurethane sleeve. The sensor is configured as a "barbell" mechanism with disc-shaped flanges at both ends and a smaller one in the middle. The sensor arc-shaped base is mounted on the outer diameter of the smaller outer diameter of the sensor. The left flange of the sensor has axial holes on its radial circumference that are adapted to the connector, and the sensor flange bushing is installed in the axial holes. The right flange of the sensor has evenly distributed axial holes on its radial circumference, and an elastic polyurethane sleeve is installed in the axial holes. The connector flange bushing is installed inside the polyurethane sleeve. An elastic polyurethane shock-absorbing pad is placed between the inner end face of the connector flange bushing and the contact surface of the right flange of the sensor. Furthermore, the sensor is a high-precision integrated tension and torque sensor.

4. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 1, characterized in that: The transmission system includes bearing I, a main shaft, bearing II, a tapered adjusting ring, a bearing rear cover, an inner spacer, an outer spacer, a main shaft housing, a bearing front cover, an adjusting inner ring, an adjusting outer ring, and a blade fixing disc. The main shaft housing is a hollow, multi-step structure. The main shaft is installed in a smaller cavity on the right side of the main shaft housing. This main shaft is a hollow shaft with an external tapered stepped shaft structure. Further, the adjusting inner ring, adjusting outer ring, bearing I, inner spacer, outer spacer, and bearing II are sequentially installed along the outer diameter of the tapered steps on the right end of the main shaft. The bearing rear cover is installed on the left end of the main shaft housing. The bearing front cover is installed on the right end of the main shaft housing. The tapered adjusting ring is installed on the right end of bearing II. The blade fixing disc is installed on the right end of the bearing front cover. Furthermore, bearing I and bearing II are precision ceramic cylindrical roller bearings of different sizes; Furthermore, the left end flange of the main shaft is provided with an axial hole that matches the right end flange of the sensor in a radial circumferential manner, and the axial hole is adapted to install the adapter plate flange bushing; the right end of the main shaft is provided with a standardized mounting flange, which is connected to the integrated blade fixing plate through 6 circumferentially distributed bolt holes. Furthermore, the blade fixing plate is fixedly connected to the right end face of the main shaft by screws. Furthermore, the right end of the blade fixing plate has standard blade mounting holes and positioning stops.

5. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 4, characterized in that: The larger cavity at the left end of the spindle box is adapted to and fixed to the outer diameter of the right end of the motor, and is connected and fixed by bolts, thereby connecting and fixing the power system and the transmission system; furthermore, the transmission system connected to the left end of the power system is placed in the larger cavity at the left end of the spindle box.

6. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 1, characterized in that: The pitch adjustment system includes a pitch control rod, a sliding bearing, a servo motor, a guide rail slide, a lead screw, and a lead screw nut seat. The guide rail slide is installed at the left end of the support base I. The servo motor is installed at the left end of the guide rail slide, and the lead screw is installed at the right end of the servo motor. The lead screw is fitted with a lead screw nut seat, which slides left and right along the lead screw axis on the guide rail slide. The pitch control rod is designed to pass through the left end of the motor, through the central hole of the motor shaft, the central hole of the sensor, and the central hole of the main shaft, and then reach the left end to connect with the propeller pitch control mechanism. Furthermore, the left end of the pitch control rod is fixedly connected to the lead screw nut seat. The sliding bearing is installed in the hollow part of the motor shaft.

7. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 1, characterized in that: The support system includes support base I, support base II, a base plate, and an embedded shock absorber. The base plate is located at the bottom, with support base I fixedly mounted on the upper left side and support base II fixedly mounted on the upper right side. Furthermore, support base I has a hollow stepped structure on its upper part that matches the outer diameter of the left end of the motor, and is fixedly connected to support the motor by bolts. Support base II has a hollow stepped structure on its upper part that matches the outer diameter of the spindle box, and is fixedly connected to support the spindle box by bolts.

8. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 7, characterized in that: An embedded shock absorber is installed at the connection between the support base I and the base plate; furthermore, an embedded shock absorber is installed at the connection between the support base II and the base plate.

9. A low-drag tension-torque dynamic measurement and drive integrated device according to claim 7 or 8, characterized in that: The upper part of the support base I has a circular structure that matches the motor housing; furthermore, the upper part of the support base II has a large arc structure with the left end larger than the right end, the left end of the arc matching the right end of the rectifier sleeve, and the right end of the arc matching the left end of the head guide ring; both support base I and support base II are made of 7075-T6 aviation aluminum alloy, and the surface of the aluminum alloy is anodized.

10. The low wind resistance tension torque dynamic measurement and drive integrated device according to claim 1, characterized in that: The low-drag outer shell system is designed with a streamlined shape resembling a torpedo, including a fairing, a fairing sleeve, and a head guide ring. The fairing is located at the tail and installed on the left end of support base I, and is made of carbon fiber. The fairing sleeve has a hollow circular structure and is fitted onto the outer surface of the left section of the main shaft box. The head guide ring is installed between support base II and the blade mounting plate. The head guide ring has a hollow interior and a left-larger, right-smaller arc structure. The left end of the arc matches the right end of support base II, and the right end matches the left end of the arc. Furthermore, the shape of the fairing sleeve is adapted to the shape of the motor and support base II, maintaining a streamlined transition.

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